Proper use of old style hand crimpers

These are AMP PIDG crimpers. The holy grail of insulated terminal crimpers. The terminal pictured is an AMP PIDG crimp, it meets military, aviation, marine, and almost all OEM specs. The bad news is, these things are expensive and unless you are doing crimps for a living, there's no way to justify the cost.
The Klein crimpers for non-insulated terminals do a good crimp.
I like the MSD crimper. They will outlive you and you can get any jaw set you need and they are one of the few that will crimp weather pack connectors properly.
If you crimp a terminal and have to add solder to get it to hold, then it isn't015 (800x600).jpg crimpers 024 (800x600).jpg crimped properly.