The Delica is one of my all time favorite knives so it's always fun to talk about improvements but I don't like the thought of changing it to include a choil, that would change the shape to much. To me the basic shape has remained the same and I like that, so I wouldn't change anything about the handle of the 4. I guess if I really think about it the only thing that I would change about the 4 is to go back to the pointier tip of the previous models. Also I guess while I'm at it I would also prefer it to be hollow ground in place of the saber grind. I haven't tried a FFG model yet, though I have played with one in the store, I just think the tip looks a little to thin. Now I know we've had this discussion before that if you only use it for cutting nothing bad will happen and I agree for the most part. I just think subconsciously I would always "baby" it or be less apt to use it like I would a hollow or saber ground model therefore making it a less useful tool to me.
I know my two small changes aren't nearly enough of an "improvement" to warrant a change to the Delica 5 and the investment in tooling costs but these are honestly the only things I would change about the knife. Like I said these are some of my favorite knives and if I had to guess I would say they have gotten more pocket time over the years than any other knife I have ever owned, love'em. I just think the basic shape needs to stay the same because that's the way it's always been and that's what makes it a Delica. In my mind if you changed it enough to add a choil it would become something else, just MHO.
I know my two small changes aren't nearly enough of an "improvement" to warrant a change to the Delica 5 and the investment in tooling costs but these are honestly the only things I would change about the knife. Like I said these are some of my favorite knives and if I had to guess I would say they have gotten more pocket time over the years than any other knife I have ever owned, love'em. I just think the basic shape needs to stay the same because that's the way it's always been and that's what makes it a Delica. In my mind if you changed it enough to add a choil it would become something else, just MHO.