Had the heated comfort seat installed. ($218 FOR INSTALLATION WITH BACK REST) Heat works well comfort not so much! The original seat was more comfortable as far as sitting goes. The comfort seat MAY??? provide a little more room(Supposed to be two inches) but the ride is less comfortable. Overall I do not recommend this seat. There is no increase in comfort almost no increase in leg room and the price is way more than it is worth. So far my experience with BRP engineering and quality of product is less than desirable. I should have gone with a regular trike. Okay I will stop crying over spilt milk. thanks for the shoulder R Chandler:gaah::gaah::banghead::banghead: