Aluminum water pump housings

I didnt like the 440Source one I tried. The holes for the Tsatat housing were drilled too close together. Not far off, i filed the new Tstat housing holes and it clears now, but I wasnt real impressed. A friend down south got one that was porous and seaped. Brandon replaced that one straight away. I havent tried the others you metnion, but I can't think they would be much better. I'll stick to MPs.