[Kevin 1G Drummer]

The key to using butt connectors is to get a crimper that actually pinches the wires in there. most normal crimpers look like () when they are closed, but you want the kind that look kinda like }) ...it's hard to describe on the internet... Also, if you're going to use butt connectors, make sure you get the ones with heat shrink on them so that they seal out any water, and possibility of corrosion.