I think the bottom line here is that you know how to tune 2 strokes but you just haven't tuned a moped... That shouldn't matter... You sound like you know what you are talking about...
The best 2 stroke tuner that I know didn't even touch a moped until a few years ago when a freind of ours brought her moped in for a kit. Before that he was tuning motor scooters and bigger bikes... Mopeds are definitely the most fun to make fast because they start off so slow, but they aren't the most popular of two stroke bikes if you know what I'm sayin...
I'm sure that someone with lots of experience tuning bigger bikes has as much or more know how than someone who solely has moped tuning experience...