I can't say I have more knowledge.  But, I would be tempted to solder the twisted wires together, crimp them in the terminal, and then tack soldier the exposed end near the screw.  I might use some liquid electrical tape to glue the insulation on the terminal to the wire insulation and some heat shrink or electrical tape on the insulation to help hold the terminal and braid together.  Loose wiring can be a very bad thing when dealing with high amps.

Likewise, I am not a lawyer, a doctor, an engineer, electrical or otherwise, nor the guy responsible if you damage something or yourself playing with fire, electricity, molten metal, etc...