I recently purchased a 2011 FLHR. I took several long trips of about 400-500 miles per day. And by the end of the day my legs were killing me, and my butt was dead. I replaced the floorboards and brake lever with extended ones. But the seat I feel is the big problem. I seem to be sitting both too far forward and too low in the seat. It was suggested that I purchase a Harley Tallboy seat and fine tune it with additional memory form. I hate to spend big bucks on a Mustang seat, and find it does not work. Would appreciate any input you may have from your own experiences.