[Patch]

You guys are crafty.

Homebrewed stuff is awesome and fun.

I vote that you just try it out as is. Then give the bb's a shot - you already have them (which is the same as free).

Sure the temps will swing, but you'll have fun. More mass at the base is great, but trying to add it to a copper cap is a PITA. Unless you're just having a blast doing the manufacturing, that time would be far better spent moonlighting for the cash to buy a milled pot from someone.

Taller is not really better. Copper mass way up the sides doesn't have easy access to the heat from the CPU.