Garrett (aged 6) and I played a combined game using FAMOUS ACES and WATCH YOUR BACK on the same table. G. ran two Italian SPAD VIIs from FAMOUS ACES and I ran an Austrian ULFANG and a Siemens Suckert from WATCH YOUR BACK. The differences between the two games were notable almost immediately. For a beginner, G. understood enough that he wanted a couple of "A" rated planes and I had no objection if he wished to run two Spads simultaneously, so long as he put down TWO SETS OF THREE maneouvre cards fromt the same deck. This works like a charm if you want to fly a Jasta of the same aircraft. Your maneouvring choices WILL be limited, though.
His A rated Spads flew against my E rates Siemiens Suckert and G rated Ulfang. Garrett got the hang of the maneouvre cards immediately and flew straight at my slower craft, who could not dodge out of the way fast enough. Both of his Spads drew damage ont the Ulfang, 4,3,4 the second segment and 4,2 the third segment (of the FIRST TURN!). That was the end of the Ulfang. My Siemens managed to draw a 3, 1 on one of the Spads, before they pounced on me. I was down to 2 pts. left before the arrival of Lady H. stopped the game.
The moral: Slow planes don't mix well with Fast ones.