The X-force is a fast bow, for sure
But honestly, the APA is unreal. the brace hight is hardly noticable. Pretty forgiving for an all out speed bow.
I shot a 350 grain arrow at 349 when I was debating on becoming a rep for them
another friend was shooting 71 lbs, 30" three shots 358, 356 and 359.
thats with a 350 grain arrow...... Not speed pros nothing retardedly light...
they are crazy.

That said, i really really liked the Iron mace. so i am sure the speedforce is great.

when I talked to nibal at apa last was when he was first getting the new bows in. He said the first one he chrono'd surprised him. they had switched strings to scorpion this year and had gained nearly 5 fps from last year. the only difference on teh bow itself was the fang added to the riser. He couldnt believe it and shot a few more shots all iin the high 350s.
Amazing what ust a string will do.