Reliable crimp connectors

I use the multi-links, they work great. They don't work too well with those little pocket torches unless you have that heat deflector attachment, a heat gun is best. Heat them until you see the solder melt in. The crimp too is just as important too. If you pierce the insulation, it doesn't matter how good of a connector you have.

This a a good tool for the price:
http://www.toolaid.com/content/quick-change-ratcheting-terminal-crimping-kit-9-die-sets

These are NOT:
http://www.harborfreight.com/8-inch-four-way-crimping-tool-92410.html