I'm running the same bearings as Jim, without the coating, I've allways been a believer in the full groove bearings, seems to make good sense to me, I like the idea of having a continuous oil supply to the rods, but I guess some people get by without that. The only negative I can see to the full grooves are that there is less surface area foe support, but the grooved have been around long enough to prove that the is plenty of surface area with the groove in.