Never two-touch and x number of passes, got to be one or the other, at least not until 11-a-side.Nice post, and i really like this part and agree with it.
How did you do the two-touch games? Because i try to avoid the max two-touch instruction, as i feel its unnecessary to put this "limitation" on them, when it would work just as well with the string passes together game that you suggest.
One of the game is "dont do this" and the other game is "try to do this" but they really serve the same purpose and encourage the same behaviour.
I used to do a lot of games where the goals were small gates that they had to complete a pass through, or a ball on a cone that they had to knock off with a pass. Gets everyone playing rather than having goalkeepers stood there doing nothing.
Two-touch can be a bit limiting for them at times, especially when they're younger, so I used to give them three or five seconds to release the ball. I could count it in my head then, and be stricter with the better players, and give the weaker ones a bit of leeway without it being too obvious to them.
Splitting the pitch into zones is a good one too, where say only two attackers but three defenders are allowed in the end zone, but I found they struggled with the rules on that one until they were 10/11ish.