This would be an outstanding post to place on the Fuji/Imvac forum as well. Carb blocks can be more than a headache. When I was reading your post I thought for sure i was going to hear that you found yours cracked in the end. But i am glad you didn't!!! This is really good information for folks new to gassers and the problems they might encounter. I really incourage you to place this on the Fuji forum as well, for others looking for similar guidance!

I've never used the MPI switches, or the Cermark ones....but rather the JR heavy Duty chargeswitch, and never had a problem.

Chad