So they had always just sat to the side in my garage until recently. I just couldn't stand to see them sit there unused. I dusted them off and took them to the bench for inspection. Another reason I didn't even get around to messing with them is that they are held together with phillips screws that have a really small head on them and the pattern is easily stripped out of the little screw heads. This made them just a nightmare. So finally I grabbed a cordless drill and a new shiny drill bit to drill the heads right off the screws so I could pull the housings apart.