The only place I use solid is NM cable. I use stranded MC. It's only about $7.00 more per 250' roll than solid and is a lot more flexible. I hate the feel of pulling solid conductors through pipe. If you have trouble side wiring stranded on devices, left-hand twist the strands before you bend the hook around the terminal screw. As you tighten the binding screw the strands won't spread.
