Solid carbon fiber head gasket up date.
I have just turned over the 10,000 Mile's this morning on our club run with this head gasket in place. The bike is still running good with no oil leaks.
A few months back I had to replace the rocker box gaskets and checked the tension on the head bolts while I had the rocker box off, they were still at the 30Ft/Lb except for the two inner rear bolts they moved just a fraction.
Would I use this type of head gasket again? Yes I would.
Do you have to re-tighten the head bolts after a few miles? No, it would seem not necessary.
Peter