Hey guys. Need some opinions here. I am shooting a parker enforcer and it is rated at 315 fps with 400 grain arrow. Been using wasp drone and boss fixed and love them. But interested in trying the rocket sidewinder. But before i buy them, my question is at my speed 315 fps should i be concerned of blades opening in flight. I read alot of reviews that say never had a problem at that speed, and it wasnt till they got up around 350 fps or so. Then others say they had some open in flight at speeds below 350 fps. So would love to hear from you guys thats been using mechanicals and what your thoughts are. Especially you users that used the banded mechanicals. thanks.