All this ACM talk has me ready to get back in the Aces High H2H Ladder.
Lots of great discussion here. I think we can try our best to explain to the newbies what they need to know to do well in a co-altitude merge situation, but unfortunately a small number of them are going to "get it".
For myself, I knew zero about ACM when I downloaded WB's in November of '98. What I have learned since then has come from thousands of sorties in WB's and AH and evaluating what in the heck I did to die that last time.
The best possible way to show a newbie how to merge is have the guy ride with you, as you explain on RW (typing is too difficult) the ACM maneuvers, and why you are doing them.
Actually the best way is to have him sitting next to your PC, but thats obviously not possible here.
BTW, Nice site Andy.