Dakota,, I agree (partly) I find them uncomfortable,, Not quite painful.. I have heard good things about the magnum chair, but haven't seen one..
I did set in a Cabala's brand 3 legged stool with back rest at the store today.. I thought it was more comfortable and was interested.. Just no price tag attached and of course you can never find a clerk, so it is still over there.. From what I hear the Magnum has the back rest kicked back a bit as well as an adjustable lumbar support.. It just has to be better