Weak crimps will show up as a higher resistance. There are bond testers from Rod-L and Hypatia that place a high current through the connection for a timed period and report the resistance. These are commonly used to test the ground connection from the chassis through the power cord. This may provide some useful information on a critical application.
Companies like Amp/Tyco have crimping tools with built-in ratchets so the crimps are always identical. If you use the right wire and the right tool, the crimps were identical. Likewise the Amp/Tyco automated bench tools used machined die sets for the same consistency. For quality assembly work, this is the way to do it.
"Wow, that's a brave statement. Megger, T&R and Cropico will all be pleased to know that..."
AVO and Megger are the same company, never heard of those other ones. Let me rephrase. For people in the power system testing industry AVO (Megger) and AEMC are the most popular choices. Hows that?