I agree with Seandtaylor99. In my days at Western Electric, I learned that the best connection is a good mechanical joint followed by a properly flowed solder (not too much). Witness all those PCBs with solder. Crimping is fine as long as proper pressure is applied and it not exposed to the elements (solder works well to seal the connection). Just take a look at an outdoor electrical connection via a wire nut (crude mechanical bond), you will find corrosion of the conductors.
