Depends on what you mean by advantageous. Higher rearsets will give you better clearance when cornering. Lower will allow your leg to stretch more.
well, when I ride, I usually find myself sitting pretty upright and when I accelerate hard I feel like I want more of a "superman" position compared to sitting nearly straight up. When I am in the straight up position under hard acceleration, I feel as if the bike is getting out from underneath me.
So, I guess I may want it to go up and back a little.
But then, the position of my legs as of today, my thigh/knees just barely cover my tank pads. I still get grip via the tank pads, but I feel that my knees could be a little higher for a little more surface contact between my thigh/knees and the tank pads, so maybe the up-and-back relocation of the pegs might work against that?
I hope I didn't sound too confusing...
I think the 7-position risers from SV Racing Parts might be the solution for me, since I can experiement with different configurations. It just worries me sometimes as I'm hearing some people with similar inseams (I'm a 31/32" inseam) say they're lowering their pegs... but I guess that's because they're more of a long-distance rider rather than a twisty-rider?