How much are you shootin in your thumper?

[Runamuckr]

Those that shoot the thumper, what "volume" are you shootin?
Are we talkin 2 ounces, a pint, one whole can of frozen concentrate??

I'd like to go the chamber route, valve under a 2X12 inch stainless spool. I can fit a bit over a pint of liquid in the spool. My plan is to flavor a pint of 40 proof clear, heat, fill, cap, open valve at desired point during run, close after shot, and carry on. Not much different then the 2 valve pipe system posted on here (don't remember exactly who) just on a bigger scale to hold a bigger shot. I like the idea of the chamber to keep vapors contained. Don't care what gets trapped in the chamber, just tryin to keep it isolated from the open flame.

Is a pint to much? If I recall the valved pipe was 3/4 inch copper, don't recall the length of the chamber, but couldn't of held more then an ounce or two.
Aside from the obvious, is there such thing as shootin to much liquid?