you have to figure out proper spine for your given setup

with your setup you SHOULD be ok with a 400 spine..

feathers tend to make noise..period. i shot them and they always had a little sound to them. i didnt like it. that and they got ruffled and looked bad and i could never get them right again...i switched to blazer vanes. some broadheads also make noise...

spine is very important though..if your spine isnt right youll have a heck of a time getting broadheads to fly right. my bow grouped fieldpoints great...but once i put BHs on i had major issues. theres a whole topic of weak and stiff spines and its effects...my spine was too light for my setup. luckily if i trimmed 2 inches from my shafts it would fall into the proper range..and that worked wonders...

if you have broadhead problems you could back off the draw weight..that will put you more into the 400 range..but you should be in it now with that setup..