rick where is the chart???If U notice on the Balabushka stock shaft test Mr. Muecci was shocked how well it did & made a comment something to the effect of, 'it must be a very well made butt' It also did very well with the Muecci Black Dot Shaft.
Now go look at the chart & notice all of differences with the same design black dot shaft on different butts. Something has to account for those differences. Is it the joint? Is it the butt weight? Is it the butt construction. I do not know the answer. But it is something more than just the shaft. The next questions are how much does it matter & how can we qualify it.
For now I think it is too difficult to determine & the best we can do is try & find one that we like the feel of not the looks of.
Hope this helps.
Rick
although ive never read about the buttt being a factor in deflection or squirt you do raise an intriguing question
why differences in results when the shaft is the same for all butts???