He's not going oom, but his healing/absorb output is doodoo compared to that of the druid and paladin.
Also, I have no logs, as we're not in the same guild and all that jazz. I've never messed with logs, so I couldn't tell you.
I'm 7/7 (tank), the druid healer and hpal are also 7/7. The group isn't the best, but we're trying to work with them to better themselves and the raid group. With him being so stubborn about the way he's gemming, and people providing maths toward why he's incorrect, he's being very counterproductive.
Also, I don't know why he feels the need to heal the raid. We have a bomb-ass resto druid as raid heals. I can understand him shielding to help out, but I'm trying to get him to stop gemming and reforging as if that's his only priority.