Myka - I'm tempted to try the double top thing at some point, I want to get a lot more guitars under my belt first.
I also see where you're coming from about emulating a re-curve with a flat top instrument, and I've seen some makers which do this by strange brace scalloping patterns. A friend in college is currently experimenting with the idea of curved bracing - he's trying to emulate a speaker cone with the top. It looks insane! (I'll get a photo if possible)
I've recently invested in some super accurate scales (when I was in Amsterdam, actually. So I'll let you guess what their primary use is ) but I'm going to weigh the bracing for the top of this guitar, and do some stiffness testing. See what I come up with.
All this talk of bridge weight has me wondering too - another thing to think about!