I don't think it counts really, but I have a 243 AI.
I have an idea for a wildcat, based on the AI but I haven't actually done it yet. It's similar to but different than the 6mm Dasher... different enough, especially since it's my idea.
I built it in QuickLoad and QL likes it a LOT.
Someday I'll build it in the real world.
Still happily answering to the call-sign Peetza.
The problem, as you so eloquently put it, is choice.
He is no fool who gives what he can not keep to gain what he can not lose.
-Jim Eliott, paraphrasing Philip Henry.