Bear,
quit wondering and cut the feathers off one of the purty arrows you made and you will know in about three shots, if the arrow survives the first shot when it hits the target sideways !!! Bet you are way stiff. Seriously, shoot your first bareshaft with a judo into a tennis ball on the ground about 20yds in some high soft grass to keep from breaking your shaft. Shoot it a few more times to confirm you had a good release, bet it is stiff everytime. That will be nock tailing way right for you.
You will need to buy some 45-50 shafts probably, I know how long them gorilla arms of yours are, haha ! You will not be able to get the shaft any longer and going from 125 tip to even 160 is not going to help you enough. Good news..... You get to make another dozen woodies and yours are purty ! I buy my shafts from Rose City and if I remember right they give you a baker's dozen so the 13th shaft is your barshaft when you make up a dozen. Just don't fletch it. I use it to confirm bow tune, and more importantly, my tune ! I always shoot my bareshaft mixed in with my regular arrows when practicing. On a good day I can hit what I am looking at with my bareshaft just as if it was a fletched arrow even though it is ever so slightly weak. I tune for a ever so slightly weak bareshaft cause you are going to add 35-40 grains with feathers and glue to the rear of the shaft, and stiffen it in the process. Also when under the diress of buck fever most people tend to short draw so a ever so slight weak shaft is in your best interest.
Start with them long and the 125 tip if that is what you want. As you shoot they should tail nock left, which is weak for a righty. Trim them 1/2" at a time and as you do they should start tailing closer to straight. Stop when you are almost tailing straight, but still slightly tail left. Make sure you do not cant the Voodo Child and do not change brace height or anything else. I crest a stripe at 7.25" from the nock groove on my arrows for an instant brace height checker in the field, never have to have a tape measure again. For Mason's osage we will crest a 6" stripe for it. Hope this helps Alex.