A good experience! I ordered the wrong item, but had no trouble setting up a return and then ordering the correct part, which is doing exactly what I needed. There was one small problem. The dovetail bar is advertised as fitting all current C-8 tubes, but mine is a 1977 model! The holes still fit the tube perfectly, but the supplied bolts did not (they were too short and too narrow). People with older model C-8 telescopes will need a pair of 10-24 bolts, a half inch long for the front and 5/8" long for the back. These are available at probably any hardware store. Mine cost less than a dollar.