JP- I've missed a lot more than "some other posts in other places" I'm sure smile .

You're absolutely correct about the H- vs. IMR- temp issue; I simply started out with the latter and never have gotten around to switching to the former because I haven't noticed the issue impacting my loads enough to make it worth my while.

Temp sensativity issues notwithstanding, the IMR version is one well worth testing in the Bob.

As for the "over penetration" issue, I'm with you; don't know exactly what that means, except penciling through perhaps, and I understand that the Barnes aren't known for that.