I don't find my centre stand wobbly, it seems fine. I'm not sure about it dragging on the ground on curves, I haven't tried to go that far. What I do since I usually want to put the stand up on a couple of 1x boards anyhow, I take the seat off, put the front wheel on a 2X, get the boards under the stand positioned, push the stand down, get the bike level, make sure my left foot is holding that little tab, and give it the heave ho holding the rear loop with both hands and it goes right up. The more I do it, the easier it gets. But then I don't have the Roadster pipes. That little tab is for the 'locator spring', the kit I got from RGM included it, but I haven't been able to get it on, the spring is too tight, but with my 'S' pipes it's easy enough to find.
But then I never put it on the centre stand except in the garage, and I've been starting it off the prop stand for 14K miles now to no bad effects. I wouldn't mind having a little longer prop stand, I usually carry around a 1x4 to put under it, it leans too much to start without it and I seem to have to get up on the pegs to start it, I can't get enough leverage with my left foot on the ground.
Dave
69S