My brother had biSTN April 98. Before surgery he had to crawl around on his hands and knees. Two weeks after surgery he was operating tractors and other farm machinery planting corn and soybeans. Two months after surgery he was up on the house roof doing carpenter work. If you asked him if he would do it again --- his answer is YES. Except for the 30 minutes or so till meds kick in in the morning you would be hardpressed to figure out he has an advanced stage of PD. Paul