[Fixittt]

yeah the base is to thick. (For me anyways)

Sandblasting doesnt hurt any at all, and yes if pondered about, it can be explained why it would help performace. By roughing up the bottom, you have very effectivly increased surface area. Now a good harsh media blasting would prolly double the amount of surface area on any given block.

The machining is very nice, its a good looking part if nothing else.

I could sit here and count the different operations, and prolly follow step by step how you machined it. Very nice indeed.

One thing I would have done, just to make it different, was when it was time to machine the pillars, I would have made a set of soft jaws for the vise and rotated the block. Instead of semetiracal (Sorry spelling sucks) squares, then would look more like diamonds. Basicly they would be turned sideways.

Good luck on the copper. Use coolant!