The down side is that it cost $768.63. I, on the3 other hand, use a ratchet crimper I bought at West Marine in a pinch. It works fine but you have to pay a bit of attention and make sure your wire is inserted in all the way through with a small amount sticking out. Then you must take care and completely ratchet it tight. When I was working I used the TE and it was the obvious winner. But then I didn't have top pay for it.