Thank you for the response Chris. While it doesn't directly answer my questions, it does consolidate some good info.
A lot of people are pulling the rear cover off of their Beymas to make it a dipole, so a comparison with the a winged AMT-1 would be interesting. They seem to meet somewhere in the middle after their respective mods.
At any rate, I've decided to dip my toe in with a pair of AMT-1s and I'll see where it takes me.
Cheers