RE: When are you good enough for a twin
I couldn't add much to the advice given above. All good stuff, and right on. Someone on one of these threads said, "multi-engine planes fly basically the same as single engine planes--until an engine quits! That's when the rubber meets the road, so to speak.
I would only add that the China Models C-160 Transall is an ARF, and a very good looking one at that, is a high wing, relatively inexpensive, and very light. Flys great on LA .25's and looks very scale. Can't address the engine out handling because I haven't had one yet. Others on RCU have the same plane and said it is vey manageable with an engine out.
Just to toss another plane into the mix! Just remember-"Airspeed is life-Altitude is life Insurance!"
Randy