I stood for a few years .....hated every minute it.....went back to sitting and never looked back !!.....seems to me unnatural to play a KB standing up especially actuating pedals if you use them also, you dont see people playing a piano standing up?.......not to mention my feet still hurt talking about it

Four hour gigs tend to take a toll on your legs after a while day after day....and double gigs 8 hrs Fugettabouttit will swell the ankles big time lol.. some might think they look cool, but personally I'll pull up a seat every time.
What say you?..
I say.."I'm a stander"..always have been...In fact..I just prefer not to sit..period..I would even stand in a movie theater..if the people wouldn't yell at me..

Makes no difference 4 hours..8 hours..you will see me standing....
Ankles swell..Donny that is a sign of another problem..
Performing while standing just feels better to me..energy wise it just seems better..The extra mobility makes it easier to interact with the audience...
So mark me down as a stander....
BTW: not only am I a stander..I use pedals, and most of the time I am standing primarily on one foot