Check and see if you can loosen the right side controls and master, and slide them off the bar just a touch, and see if that makes a difference. If the bar was "flared" it may also be a tad to long, binding on the end of the bar, inside the grip.
“When the going gets weird, the weird turn professional....” ~ Hunter S. Thompson~
R.I.P. Rubberdown. 1971-2012