Reply to "Is this screen too fine of mesh? Opinions?"

I can't see chunky bits getting through the filter, after all that's what it is there for, so there shouldn't be metal bits in the oil passageways eg: crank, bearings, rods ect.

but i would take the manifold off and look at the lifters. The rollers in them might get contamination thrown up by the turbulence of the crank rotating. A roller lifter failure would be a disaster ten times worse than a rocker arm.

Finer screen and magnets are a good idea.

I agree with the earlier post, if the surface area of all the holes in the screen combined is larger than the surface area of the pump inlet tube plus a bit extra it should be ok. Keep a eye on the oil pressure !!