Project Katera – Part 3

My Katera now has been stripped down, all parts cleaned and lubed with Scorpion Venom. The new custom strings and cables are installed with the G5 Meta Peep tied in, the strings and cables are treated with Scorpion Venom Polymeric String Fluid. To date after 100+ shots the peep has barely rotated.

The next step was researching arrows for my setup. To recap the specs of the bow my draw length is 27″, the current draw weight was set to 74 lbs, I purchased some G5 Montec 100 grain broadheads and some G5 Pre Season Montec broadheads from South Shore Archery. Some of my goals were to shoot a heavier arrow weight of at least 400 grains, achieve 60+ foot pounds of kinetic energy and more than .48 momentum at 50 yards. All while maintaining good spine and at least 10% Front of Center on the arrow. So, I ran this configuration through Archers Advantage and OnTarget 2 (OT2), just for comparison. But, personally I like OT2 better as it has more sight tapes and some other functionalities in it that works for me. 

I think that I drove Jerry at South Shore Archery nuts with my questions and dilemmas! He thought that he was a perfectionist! I chose Jerry as he not only does great work but does some extra steps that most shops don’t do or charge an extra fee. Some of the extra steps were spline testing each shaft to identify the heavy side and weighed and sorted again by weight. One end of the shaft is cut and squared. Then the nocks & inserts are weighed, sorted and installed in the shafts and the nocks are indexed to the heavy side of each shaft. After the Inserts are installed they are machined square to better align the points. I don’t know many local shops that will go through this kind of detail.

I ended up purchasing the Carbon Tech Whitetail XP 65/80 shafts. This was an orchestrated event to have them built by Jerry as I did not have much time to do this with work and my 2 year old son Ciro, who is very interested in everything hunting! Which is a GREAT thing, just not while you are trying to build arrow, sharpen knives or broadheads.I had my very talented good friend (Joe Cima) design my arrow wraps for me, Onestringer created them and shipped them to Jerry.

Then, came the next part when I drove Jerry nuts! Most “normal” people assemble all of the components of the arrow and install the insert last. Not, ME!!!  I had him install the broadheads into the inserts and install them so that the broadheads would line up with the nock. This way every arrow shaft would be identical. Then, I had him fletch the arrows after installing the arrow wraps.

He is a photo of the fruits of labor from Jerry, Joe and OneStringer:



Print Friendly, PDF & Email


  1. Chris Wambeke says

    It sounds like you listened to the Bowcast episode where Josh from Spot Hogg talked about the Hooter Shooter.

    Thanks again. I’m ready to get after it.

    • Chris, I did listen to that episode and once again utilized the resource and information provided to me! Hit us up when you have completed your arrow building or if you run into a question.


  2. Chris Wambeke says

    I’m sorry I didn’t make sense. This is the most thorough description I’ve found. Thank you. Your site is the best resource for info on the web. Again, thank you.

    You spline tested the arrows to find the heavy side. This in itself is s controversial subject. Some say there is no such thing as spline in arrows. My question is did you use the bath tub method or did your shop do this for you? I don’t think my local shop offers this service. Any advice.

    My second question is once you establish the heavy side of the arrow do you build the arrow so the heavy side is facing the riser or is it facing upward. I’ve heard both when using a release. However I’ve also read that when building the arrow with the spline facing the riser it’s designed for finger shooters while an upward spline is for a release.

    The answer to this question will determine how I fletch the arrow. Do I fletch it with the cock vane on the spline or opposite to the spline?

    As for orientating the broadhead to the spline, I want to know if there’s a best/most efficient way. I’m going to use the Tekan or the T3. With the T3 being a three sided broadhead I’m guessing I would match it up with my fletching…yes? If I use the Tekan would it matter how I position it or is it just of matter of being consistent?

    This subject has as many opinions as there are fletching companies. I recognize that for you toanswer all of these questions is a tall order, but I’ll let you pick and choose.

    Thanks again.

    • Chris,
      Thanks for clarifying your questions, per your request, I have done my best answer them clearly and to the best of my knowledge.

      The “some” that say this may not be interested in that detailed of completely tuned arrow or may be referring to their “own” (if they are a manufacturer) shafts. I mention the last piece of info as Carbon Tech backed their statement, which I was highly impressed.

      I tested the arrows myself on a spline tester with a 1.94# weight suspended from the center. Then I measurement is the deflection or the distance that the weight made the shaft bend at the center. The measurement is taken with a run-out micrometer. For example a “340” spine means the shaft’s deflection is 0.340″. I only performed this on 4 sides of the arrow. If I were to find a stiffer side than the other 3 sides, I would dedicate this side to the cock vane, I prefer to simplify it by setting the stiffest side facing up and in line with the bow string. With my shafts I did not find any variation in weight, spline, and spine between any of my arrow shafts. I also had South Shore Archery order a dozen and perform the same tests and Jerry the owner was more than impressed with the results.

      Broadhead tuning is what it says! You may want to set one or two up in different variations and tune them until you achieve the best accuracy and consistency and replicate this setup on your remaining arrows.

      I shoot the G5 Montec and fortunate enough to find that these broadheads are exact duplicates of each other. Other broadheads may be close or replicate each other. I created a jig so that all of my G5 Montecs were oriented to the nock on the bare shaft. Once the epoxy set overnight, I then installed the wraps and then fletched the arrow. Some may think that this is a bit unorthodox or crazy, but I am more than pleased with this setup.

      As you stated, there are several opinions and you have to make the decision on what works for you. While this may seem a bit overwhelming or frustrating, it’s a major part of the tinkering that all of us bowhunters love to do!

      Let me know if you have any other comments or questions


  3. Chris Wambeke says

    I’m setting out to build my first set of arrows and I have a lot of questions. You based your entire arrow with the nock. How did you establish where you wanted the nock? Is that based on spline or spine or both.

    • Chris,
      Thanks for stopping by and posting this question! It’s great that your are preparing to build your first set of arrows, it’s a lot of fun! I am not sure if I understand your question exactly with the points of “based entire arrow with the nock” and “how did I establish the where I wanted the nock”. Could you clarify this for me, so that I may provide you the correct answer to your question?