You probably have -- I've only made maybe 30-40 cables myself, but now I'm staring at the need to make about 80 more, which then get shipped to other people and which are not 100% easy to replace (but still possible).

I need 100% success here.

My cheapo RJ-45 crimper that I have right now (C$25, Radio Shack) does a barely adequate job, leaving the contacts slightly crooked after crimping, and requires considerable attention to ensure the wires don't shift around at the last instant as they are inserted into the connector.

This tool looks like it might solve those problems, in a revenue neutral way for me! Tool is US$50, plus US$12 for a cable stripper (which I'd get regardless), and then the connectors are perhaps twice the cost of ordinary ones..

Cheers