I think your right on the blade geometry. The Indian Kukris tend to be thicker at the edge. I've used the batoning technique with both the Ontario and Cold Steel Kukris with no problems. However I sold an Indian one I had for pretty much that very reason. It just didn't perform that well and I really didn't think it was worth the time it would take to re-profile it.

Man than would be awesome if Busse made a Kukri!!!