We had a few pm's earlier today and it was obvious that your not wanting to drop poundage.


It would be to your benefit to try it and see what happens before spending money.


You will most likely see an improvement in penetration because of tune improvements.


The speed difference will be less than noticable.



I just run some numbers for you.


With your current setup


At 40 yards you can be between 34.2 and 44.4 yards and still be in the 8 ring of a Mckenzie bowhunter buck.Using the 40 yard pin.This is assuming an absolute perfect shot.



If you drop your poundage to 64#'s and cut 1" off your arrows,you will be able to use your 40 yard pin at 34.7 and 44.1 and still be in the 8 ring.


A 1 yard gain at 40 yards,not really worth fighting over.


The big difference is about a 10 ft lb drop in ke but you will gain the majority of that back with tune.

Like I have stated many times already,what does it hurt totry.

Centershot is very important to the shootability of a bow and tune is important to penetration and forgiveness.