I spotted these in a dumpster divers yard amongst all his other treasures and got them at a pretty reasonable price. Not sure what to do with them yet. Any one know if they would work on my 1404 IMP? Or would I be better off selling? what are they worth? They all look to be in pretty good shape. I could make them fit on my IMP but they seem a bit aggressive for the C4 but Im not sure. Can anyone enlighten me?