Brunno,
Hey man, them blocks are looking damn fine, they should perform well and I think that the testing method that you're doing is fine, no need to get all super techical, most people don't even have the test setup that you have laid out...
About the "looks..." frankly, as I've always stated, I don't give too much a damn about looks of stuff. I'm ALL ABOUT PERFORMANCE. Looks, bah, that's some kid stuff/nerd "look at my WATER cooled OC'ing rig" mess that people use to inflate egos IMHO. It's nice, but it takes up YOUR time to do it, and adds unnecessary COST. If people want eye-candy, they can polish the blocks themselves, that's how I feel... Now lets talk about me purchasing one of your lovely blocks ASAP! PS- I want one of the one's with the ALL-copper construction!

Thanks good luck!
Ciao!
__________________
XP 1600+ AGOIA-Y (GreenLabel, UNLOCKED!@/ NF7-S 2.0/ PC 2700 DDR
10.5*172FSB(1806/ 1991 high), Vcore 1.792...@84.95Watts
--86' Chevette Heater Core
--1/2" Vinyl tubes
--Via1300-Stealth Mod(QUIET!)

---Home made copper-tube block
---PVC small internal res