Mine don't really make the crimp into a little "c" on the
first round and then when I crimp in the second hole, it doesn't
come out in a little tube. Do you use crimping pliers and, if so,
are you able to get the neat little tube that you're supposed to?
I was having a problem with my crimpers until I redefined the inner
edge shaping with a file. The crimp would fold up just fine in the
first station, but when I turned it 45 degrees to make the final
squeeze, it just wouldn't stay put. After I filed the groove out, it
stays beautifully, and my crimps turn out just fine. They actually
look more like little flat pillows than tubes, though. Make sure you
use gold filled and not gold plate crimps. I had a terrible time
with the gold plate ones. They failed miserably every time I used
them. I finally tossed them out and only buy gold fill now.