Always supply the the rod, ring, bearings, cage and pin to whom ever is honing the ring pressed into the rod.
I always hone to the tightest fit that allows the pin to spin freely.
Half a thou I would consider excessive for long life.
Nothing wrong with taking that approach to achieve a minimal clearance, though I've done high mileages on cranks with .0004"-.0005" clearances at assembly....Over 80,000 miles in my B33 for example...Ian