Probably still doesn't matter considering most of them are not accurate on thier claims any way.

And that is the IBO speed, that says nothing about how they will shoot with your set up. The best thing to do is find a good shop that carries the bows you want to look at. Have them set both bows at the same poundage and a draw length that fits you. Then shoot an arrow simular to the weight you will shoot and see which is better.

If the slower bow felt better in my hand and was quiter with less vibration I would take it over the faster bow to be honest.

Which bows in particular are talking about?

Paul