Of course these designs are repeated from company to company. Why change what works, and beyond that there isn't really that much that can be changed among machetes of a particular style. Altering the blade just for the sake of making it different makes no sense at all, especially when it is already in its most effective form. I think that we were just amazed at how exact a copy the Imacasa is. The handle is exactly the same, the sweep of the blade looks very close and the tip is cut off just like the Collins. That detail especially is not needed on the Imacasa but they apparently wanted to make theirs just like the Collins. This is not a criticism of Imacasa. They are perfectly justified in trying to replicate the Collins, and from the looks of it they turned out a great machete.