High BB - Shorter feel, easier on the rear wheel, twitchy. Low BB - More solid feel, harder on the rear, i feel it allows you to put more power down as the rear end doesnt flick out as much. Long Stays - Lots of leverage. Short Stays - Rear end flicks out quickly, easier to get on the rear. Long Reach (guess its the only thing you could be thinking of) - Considered better for sidehops and gaps, but not so at home on natural. Short Reach - Easier to throw around, manual, and bunnyhop. Coupled with a lower BB (as with monty's) they are great for both natural and street. Reach as depends on height greatly, as a short rider wont want a stupidly long bike for obvious reasons.