Mobo,reliability and simplicity are just a couple reasons.The reason you see more spring steel on the bows of the pros is due to forgiveness and guidance.The spring steel just provides more guidance which equates to forgiveness and does it while be very simple and easy to tune.
Ok, now we may be getting somewhere. BUT......W/ a drop away, the arrow isn't in contact w/ the rest for the full cycle of the cam.....wouldn't that make it inherently more forgiving? What I mean is, the longer the arrow is in contact w/ the rest, the longer the archer has to "mess it up"???
Or am I just completely wacked out here??