Hope this isn't daft question but is there any sercret to sitting for longer periods without your feet legs going numb? Does the position make a difference? I find it hard to imagine that full lotus is any better but then again may be that's just becasue I can't manage it!
I usually sit using a seiza bench I made, which is slightly taller than the commercial ones as I'm quite long/stout legged. I don't mind my feet/legs going numb at home but on one occasion at our group when it comes to kinhin I find it hard to be up on my wobbly feet in time and on one occassion I actually stumbled into someone ops:
Just sat-along with Jundo to end with very numb feet.