I took my gsa wc in for a service and was given a gs wc as a loan bike, bear in mind it has the same bar arrangement , same controls and my gsa had a low seat on it (same as standard gs seat) so the bar /peg/seat orientation are identical yet the chnage to the narrow rubber pegs on the GS made a huge difference.
More comfortable and it meant that the foot controls felt much better. ......... a mod I will be carrying out on my GSA