I pressure tested the 1g SMIC for a potential buyer that ended up finding a FMIC core and backed out of the deal. It held 28psi, I plugged one end and put my boost leak tester on the other. I submerged the entire SMIC in a 50 gal drum with water in it and there was no bubbles.

Both units are still up for sale. Offers welcome but I would still like to get $30 shipped for the 1g SMIC and $23 shipped for the 2g SMIC.