spinning the bike on the side stand doesn't take much strength, just big balls...haha j/k.
i used to do it all the time, because it's fast, convenient, etc. however, i've noticed how the very tip of my kickstand is now angled more "up"...and the stand...well, it's just not the same anymore...hehe...i still do it once in awhile but not too much anymore.

Mawfaki # 0.5
"Let the ignorance die with the ignorant" - Tahoe SC