Strange arrow behavior...

[halfseminole]

With my new bow, I shot the 7595s that my horn bow likes (250gr points, packed with packing peanuts) but they didn't just fishtail, they bent like an invisible hand was shaking them back and forth.  I know the new bow is heavier, though I don't know by how much, as it's 43@28" but I'm pulling 32".  I've never seen such behavior, does anyone have any insight on what I should do to build new ones?

[old_goat2]

I know you shoot with the thumb ring thing and I don't know how that effects what spine you need but that seems way to stiff of an arrow even at 32". Are the bows risers cut the same to center?  I draw the same length as you so I know your pain trying to tune arrows when very few of them are even long enough to use full length the way it is.

[mahantango]

You don't say what the new bow is or what degree of center-shot it's cut to, but a 75/95 is .300 deflection and a REALLY stiff arrow. Now I know from reading your past posts that you don't feel spine has any bearing on arrow flight, especially with a thumb release, but I will strongly suggest that you try a weaker shaft, as you are probably only drawing about 53-55# and if that bow is not cut at least to center you are going to get some pretty wonky flight no matter what kind of release you use. No offense, just trying to help.

[bamboo]

tight nocks can put a wiggle in your flight

[halfseminole]

The bow is cut to center, and upping shaft weight on the nock end resulted in laser-like flight.  I packed it with Techflex braid and paracord, and dropped the tip weight down to 200 grain, therefore upping dynamic spine.  

The bow is a Manchu style static recurve, 4" static levers resting 8" forward of normal strung height.  Brace is about 8", and I'm working on making up some 36" arrows to test.

The fishtailing was almost completely stopped with the upping of dynamic spine and the addition of more weight.  Manchu war arrows could be 35" and weigh over 1500 grains on average.  This is bearing out with the testing I'm doing.  I'm gonna fill it with sawdust and try it out tomorrow.  Late this evening if my legs cooperate.