Scored Main Cap Bearing - Ouch

927 ppm is not adequate. You need to shoot for up around 1200-1300 ppm, IMHO. That was where the ZDDP levels were before the EPA mandated drop in ZDDP levels that caused the problems to appear. Treating to get 927 ppm up to the 1200-1300 ppm range is takes almost as much additive as getting 800 PPM up to that range.

Been through the numbers..... you need 1/2 a container of Rislone Oil Additive (at it's ZDDP concentrations) to get 5 qts of 800 ppm oil up to, or a bit over, 1300 ppm. It's been discussed before.

Moly is certainly no substitute for ZDDP. IDK on boron.....

I am synthetic junkie, LOL, and have run over 1M miles with it on various engines, race and street, starting back in 1976. So no problems with that for me. I have not used any synthetic blends.