it was stupidity! I don't think there is a cure for that!!
basically, I decided to install previously used CNC Racing cam covers which were removed from my 09' Sport 1000s. They have the 9.5mm tall shoulder. the ones removed from my 07' GT1000 have the 7.5mm tall shoulder. Sooo, it is a miracle my bike didn't start and thank God it didn't. there are plenty of posts about this issue and if the bike started, I could have blown something in the engine or the timing belt could have skipped. but, my mechanic heard the motor struggle and right away stopped it
I had a guy machine the CNC Racing cam covers 2mm down and we put them back in. yes, we observed and added the 1.5mm deep oil passages. the GT1000 runs like a Swiss Watch again!!
Please keep an eye out for the 2 variants of cam covers. I was under the impression that 07' and newer SC models had the 9.5mm tall shoulder but it seems that this isn't the case
attached is the famous info from NCR