Hi Paul
I think I am in a no-dig minority of one on our site! I have heard several plot holders talk about going no dig, but they still continue to use weed killers, rotavators, etc..
I agree with Stringfellow and think that leading by example is probably the best way to go. As well as the leaflet (good idea Alfalfa!), could you arrange some sort of workshops to give newbies some direction? Good luck.