If Im on gravel or dirt I will stand up. Elbows up, knees bent, and ready to shift my weight any direction. This is with a K100RT. The big 'ol pig handles pretty good when Im on the pegs. But the suspension is not any good at speeds over 15MPH on the rough stuff.
And I will stand on the highways for 20-30 seconds at a time to stretch the legs.
As far as being able to work the clutch and throttle and front brake, The levers need to be rotated down a bit, pointing to about 8 oclock. (or even 7 oclock for my dirt bikes)