Call me nieve, I never new the pillion seat was called the Bit(t seat. Learn something new everyday. I guess that stems from those 'If you can read this, the b fell off' shirts. If you dont mind i will continue to call the seat on the back as the seat on the back, or passenger seat. I must confess, i dont know any bitches, except my two little dogs. They are both bitches, but i wont let them on the back of the bike.
Would i ride two up, depends on who i am on the back off. I would have to trust them and their riding ability. I have been in a crash while on the back of a bike and it was the most frightning all of the wrecks i have had (there has been a few) and i think that comes from knowing you have absolutley no control over of the situation.