Can a string change cause a spine change?

[Zmonster]

When I first got my gamemaster I was hoping to shoot the same cx150's that all my 55# Arroyo's were shooting. Well it turned out that they were way to stiff. I had a few 1916's that I was saving for fluflu's and thought Ide give them a try. Well it turned out that they bare shafted outta my 45# GM perfectly.

My new GM was shooting them so beautifuly that I just purchased 2 dozen more.

Well, My new DAS string came in today, and after stringing her up to the same brace and nock heigth my 1916's are showing very weak.

What gives?

I cant see a string making that much of a differance. But I guess I could be wrong.

The original string on the GM was a flemish, but I dont know the material. I also had cat wiskers and a brass nock. The DAS is a endless loop with bow jaxs and I tied on a floss nock.

[bailebr3]

hmmmm.... i know that if you go from a dacron or flemish string to a FF string it will usualy change arrow spine in some amount...sometimes alot, sometimes its minimal. i have never changed strings on my gamemaster so i cant speak from experience.

by the way was your gamemaster a heavier weight than it listed on the limb. mine says 50# but pulls 56-57# at 28"

[Zmonster]

Mine pulls to 48#

The wierd thing is the cx150's are bare shafting much closer now. In fact, they will probibly be perfect with a heavier tip.

[Bjorn]

A string change can definitely cause a spine change; and not just changeing from B50 to non-stretch. Number of strands can cause spine change as well.
You can do it deliberately too-often it is easier to go to a higher or lower performing string rather than new arrows.

[jacobsladder]

fastflight has no give and pounds the arrow...so you typically need a stiffer shaft.... Bjorn is very correct on the strand count also..

[Shawn Leonard]

Yup, string change can make a pretty big difference. I have had bows that had 16 or 18 strand FF strings on them than gone to 10-12 and picked up several fps as well as had to change point weight. Even my Arroyo I had to slow the string some to tune my 150's and addedan extra set of silencers. Shawn

[Larry247]

My doctor told me the bow string has caused my spine to be crooked as a snake.(grin)

I think that a 12 strandff string on my 46# widow gives me 5fps more than an 18 strand ff.
I don't think it changed my arrow spine any though....