With the smaller andersons, they suffer from a few easily fixed problems-
Crimping the wire into the contact may not work. I've had a few pull out, including one right before a match. I ended up jamming the wire back in and taping it in place for that match. Fixed it for the next fight by crimping and soldering. A lighter crimp and a decent solder joint works better for them, anyway, as it won't warp the contact as much.
If you have problems with them coming apart, there are either these-
Blok-Lok PowerPole Clamp's for the 15, 30 and 45 amp powerpoles
The other, cheaper, easier solution is to wrap the connection between the two connectors in electrical tape. Not sure exactly how legal that is, but I don't see a reason it *should* be illegal.