I measure lifter bores in a discussion about oil pressure is not a blank statement, it is common sense to me, and good engine building-measure as many clearances as you can-and if you can't-pay someone to
You said in a previous post that you completely cut the flow to the drivers side lifters. That is why you do not have a problem, not because of your lifter clearances.
You still have not told us how you change your cam bearing clearance.