I think I saw someone's worklog where they tried to use compression fittings on a Fuzion and they didn't fit. It was one regular barb and one compression fitting. I think they were using 1/2" ID tubing though, so that might make a difference.

I was thinking about 3/8" tubing and compression fittings for a loop. I know, boo hiss hiss as far as 3/8" tubing, but the redeeming factors = black Tygon with Bitspower compression fittings.

Could I get two 3/8" ID (1/2" OD) tubing compression fittings onto a Fuzion CPU block?