Get the F2 Race Titanium.
I also dropped the TD2's because they were too stiff. And the other thing I hated about the TD2 was the floppy back bail.
When you buy the F2, get the standard bails. The bonus will be that we can easily swap boards
I really want to try out your upcoming Coiler VSR.
I can loan you a pair of ProFlex bindings, which feel very similar to the F2 Race bindings. The ProFlex are a little more flexible. ProFlex was the precursor to the F2 Race. I have both and prefer the F2 Race, just because it looks sturdier; ride wise, I can't really tell the difference.
The F2/ProFlex are the easiest bindings for adjusting to different boot sizes, but the canting options are very limited. Since I don't use cants, that's not a problem for me.