It was brought to my attention that on the 749S/R and 999R it is required to remove the heads in order to change out the closer shims if they are out of spec. Apparently the design is better in a sense they stay truer to spec and can tolerate more abuse. However, I heard recently the design wasn't in place on the early 999R bike, like what I have. I hosted a Testastretta workshop last year in order to gain the necessary knowledge to complete my own valve clearances. That was when I owned a 999S, so the above situation didn't apply. Can someone clarify?