That sounds like a good idea. I think the Delica/Endura lines should stay without a choil.
Would it be possible for an optional hourglass/wire clip? I've seen the way that the wire clip is implemented in the Meerkat. What if screw holes were positioned so that either an hourglass clip or a wire clip could be used? I'm not a fan of the wire clip; I'm just saying it would be cool if we had the option.
The biggest improvement that can be made on the Delica and Endura models is getting rid of the finger hump in the middle of the handle. It adds no grip, it's not positioned correctly to accommodate anyone's hands that I know of, and it makes the knives very uncomfortable to hold. I've ground off the humps on all of my Enduras and Delicas, and they are now much more comfortable than they were before. And you can't really tell the difference unless you look for it.