there are many areas that swear by that electric shift, but around here you they don't even want them on a trade in. don't rush, all will be fine. simply, if we think our body, or the chair we sit upon or the computer we gather around is solid we are crazy. there are 34 channels (mostly radio), but it sometimes finds only 4 by name and sometimes it finds the names all the others except for the 4 (radio) channels. these are just a few of the many emergency plumbing situations you could be faced with. 