Yes I do.
I have a 1971 single stick Pro-Line, with machined sticks and two complete flight packs and one pack has never been in the air. To me the most comfortable way to fly RC. Single sticks just never caught on like standard two sticks. Would like to see someone work on one (and not cost an arm and leg) with an auxiliary or remote stick for the left hand to be able to control the rudder in certain maneuvers. I have a Silver Seven by Ace that has the remote rudder control and love it, but its an AM and getting a little old.
Terry