I'm gonna try and get Jonathan on the phone tomorrow for his opinion on the root cause. If it's the pump itself then yeah still sucks either way, but at least I know some thing else didn't cause the pump failure. Being such a rare type of failure , my guess is it's kind of tough to put a finger on the exact cause. Seems like the pump went from just tired, to ISIS suicide bomber quick fast.
I was thinking about lack of low pressure oil running the hpop dry , but it seems like plenty of people have lost an lpop and never even harmed their hpop let alone grenaded it.
There could be something I've over looked , but my gut says the pump s the culprit. Possibly the gen 3 was to much for the little jr.