The DS 821's are pretty darn good sport digitals. I've been using two on split elevators. You may not need 5 digitals onboard, but they are a definite asset on elevator. You can use analog's on the other control functions. A good strong economy analog is the HiTec 625 metal gear. You can check out HiTec specs here. > http://www.servocity.com/html/hitec_servos.html

You can also find some pretty good deals on ebay, when dealers split up the Spektrum sets, and sell new DS-821's in sets of 4.

> Jim