If anyone thinks a modern F3A ship is "complicated" then they've really missed out on the golden years of the sport.

The current crop of F3A equipment have never been simpler. No retracts to worry about (air or electric) no tweaking of tuned pipe lengths and compression ratios, no inflight mixture control, no CG changes as the fuel is used. I'll grant the split rudder idea, biplanes and the odd 4 servo wing are the exception to the norm but I could fly my current ship on a 4 channel radio with a bit of mixing thrown in. And for the really young guys, YES aileron differential can be achieved with Y-leaded ailerons and the correct linkage geometry.