Liquid Cooled ZDZ?
Mike, I could swear I saw a piece on your website a while back asking about interest in water cooled versions of some of your engines (it could have been either RCS or ZDZ). Am I crazy, or did you have this there, and if so, whatever became of this idea? I ask because it came up on another thread, and because I have a couple of projects in mind that would require a liquid-cooled solution.