RE: YS 160 DZ
Bob - Yes, more trouble than a glow 40, and yes - a swithable glow driver is almost mandatory, but it doesn't need to be a high dollar version. simply a nicad, a connector with a lead and switch (push button works). I only have two hands also - I tie the airplane to a post - or use a starting table - one hand on the starter and the other on the landing gear with the switch within reach of a finger. Spin the engine and flip the switch. Sure beats banging the starter / airplane by initially cranking the thing with hot glow.
Sorry - I don't believe I know your friend.