I started hearing about the newer DLE 8.4v ign. modules a year ago this past fall. As mentioned though, dealers could have been sitting on older stock and delivering the older modules with their "new" engines for quite a while after that.

Re: the new RcXp modules, the guys in a position to know what they're talking about, including Milton (the US distributor, rcextremepower.net) are saying lighter, smaller, cheaper, and more robust (including one who's playing with it on 12v). What's not to like?