I've been bushing blocks since the early 80's..BHJ fixture..I run cast bushings and I've used splash only on the street and also a .030 to .050 hole no real difference in wear with the cast..
In the late 70's I tried bronze for the half dozen or so engines with splash only and when it came to freshen there were some that needed to be replaced..
Mickey at BHJ told me to try his cast bushings and I've never used bronze after that...very good service life with cast on the street..