I like the idea of stopping the choil at the plunge line. Some designs are losing too much cutting edge with enlarged choils. An elf choil would work on the BGSS4.

I also like the rounded spine idea, but that would be a cost consideration for Dan's value ratio.

Of course, I'd want a Sage / Tan ResC option.

I think offering 1/8" and 3/16" versions would address all of us.