Engine decking issue(help)

I suspect the machine shop that did mine didn't get it quite right. Compression numbers are within a few pounds on all cylinders but the left bank has average 203 psi and the right bank has 208 psi cranking pressure. The thrust bearing on both my 318 and 408 are always in the worst condition when I change them out yearly. Both motors line bored and zero decked and done in the same shop same machinist...who is no longer employed there.