I think that would be the ultimate chopper. Ive been experimenting alot with choppers lately and when you take into account fatigue from weight and how deeply the knife bites with each chop I think somewhere between .245-.280 is the best thickness for a 10inch + blade. It allows for sufficient weight and when combined with the correct grind a deep bite. When you get to .3 and up in thickness the extra weight can cause so much fatigue that the extra power is not worth it in the long run. A really thick stock also makes the knife slow and limits its ability as a brush clearer.
I think a Busse kin Kukri with a thickness right at .25 and either a full flat of convex grind, 12 inch blade in a similar shape to the cold steel kukri would be just about perfect. With a Res C handle for shock absorption and weight reduction the knife would probably only weight about 22-23 ounces.
You could use it without significant fatigue, it would be light enough to carry all day, and fast enough to clear brush well.
As for the handle I think a hybrid between the regulator handle and basic handle would be best. It would be more the shape of the regulator handle but would be thinned out just a bit and have a catch/ curve at the end like the basic handle.
