I got that big black german waterblock in the mail today from a US store that stocks innovatech parts:
Initial impressions are that build quality is excellent throughout. If I can get off my ass (hahaha not likely) then next week I will have a comparative review between this block, an original maze2, and a new maze2.
The fittings are nice but tiny. I think I can put 1/2" barbs on without too much trouble: