@bass theory, check out this guy's guitars, albethey six-strings, particularly
this one, similar to your floating top design. Here's a copy/paste to preview.
View attachment 4453824
Whoa that is beautiful!
But, i don't think it is functionally like my floating bass. Well, maybe the original. But not the recent variations.
My design has progressed from backless to hollowed body. and even though the top is separated, the hollow body still has a resonance to it. Not as much, but still there is some. With that design, there is no body under the strings to resonate. In effect this is almost more like no body at all, except to house the electronics and give it form. I would guess this would be functionally more like a solid body in tone. that was how my backless floating bass was.
But oh my goodness that is beautiful. The only thing i don't like is it is made from plywood rather than lumber.
Also, i have not tried yet to do a variable scale. maybe soon, but i am still perfecting my main line design.
I know RodRy may not like it but I am becoming partial to using wooden pickguards on my main line. My original plan was to use pickguards only on baritones, and they would all be hot rails set up like a stratocaster. But, now i am considering doing it with dual soapbox pickups on my basses also. It is exceedingly difficult doing intricate work with wood that is only 1/8" thick, especially when you shave off that 1/8" yourself from thicker base woods, but the results are lovely. I got the idea from cutting down 6/4 lumber to 1" in order to make necks. (cut off 1/8", take away another 1/8"for saw kerf, and you have 1" thick lumber)
Hmmm... what if i made the backless body version 3/4" thick... then add the floating top, and a floating back as well.... It would sure be interesting... could call it the full floating bass.... maybe someday.