un-called for and non mandatory update:
Loop is still leak free, and dependable.
The automotive Hy-per lube has agents that cancel out electrolysis, no corrosion and no problems to report.
I also got drunk one night and ordered a cheap, china POS laser cut water block that is SURPRISINGLY holding up quite well.
Also has a really nice, really flat contact surface as well (forgive the mouse pad... I do work on my cars)
Finally started converting all the rubber hosing to compression fittings, however they are automotive, and I think i'd rather flare and use a compression nut on a flared fitting than using this style of compression -AN combo
As for the block, it gets warmer faster than my solid block of redneckery, but it is more stable, and keeps a lower max temp without heat creep. The reason for this is because the block is SURPRISINGLY well made (at least this one). block itself is thinner, thus the boost in heating speed, but it does direct coolant over the cuts quite well and keeps my 4.5Ghz 8 core cooler at max load, which to me is a better pro than my bored out block of sadness, of which I believe it stays cooler longer because if its size; susceptible to heat creep however.
Saving money for a legit, better, "Regal-boy" build this winter, stay tuned.