Elizabeth says,
I have a hydralic crimper. not the worlds best, but what it crips stays crimped!
I second her use of the hydraulic crimper (like the one linked below) that I used on some pretty high quality speaker cables I assembled. Using stranded wire cables, the test crimp I tried almost appeared to be a continuous piece of metal between the spade and wire. Obviously not as good as the new machine Cardas has been using, but as good as I have seen from typical consumer crimping devices.
http://www.harborfreight.com/hydraulic-wire-crimping-tool-66150.html