done about 500 miles with mine on the R and took it to curborough sprint course today and god what a difference when pushed hard, were a little pressure sensitive around there and did not like low pressures as you felt it through the side walls, did drop off but oddly all cars were experiencing similar issues but came back and cleaned themselves up after 30 miles
turn in has transformed the R and have so much more confidence in hitting the apex
3 second improve on best lap time from last visit without them