Maybe stop using anything related to comp cams and you will stop having problems. They don't know how to engineer engine parts to last

 

Heavier oils causes more restriction and an increases in oil pressure. I don't know about you but I prefer to have a good circulation of oil going through my bearings. I would consult with your engine builder on what oil you should run for oil as he mostly likely knows the clearances are the engine. Tight clearance with heavy oils could spell trouble on the horizon.

 

bingo! Any well manufactured oil at this point, will provide everything you need, even @ 5w30.