RE: too fast for fixed heads?
All I can say is if you are tuned up correctlyyou should have no problem.
My new Phantoms cut-on-contact are shooting as good and anything else I have,fixed Muzzy and mechanicals,and my bow is no piker when itcomes to poundage and speed.
It does sound like a case ofthem being "not all that Pro in a Pro Shop/pushing what they sell" to me.