I'll bet that if you had the opportunity to shoot both side by side, you would notice little or no difference. You do know that Reflex is a subsidiery of Hoyt? I believe speed only counts at the range, or at shoots. Makes the bow more forgiving at the vsariety of distances you have to shoot.
In the field, makes far less difference than knowing your bow and equiptment and how it will shoot under different situations. Let's face it, every bow ever made has the potential to harvest game. But it's the shooter behind it that makes it great (or not so great).
I say, take the $150.00 savings and spend it on new arrows, broadheads, rest, case, or even a range finder.