WRG is a bad a example mate.
Judging from your experiences (and those of other wargaming chums of mine) I'd actually say it was qite agood example for what yu were trying to say. Unless you meant that it was a "bad example" in that after 7 attempts they effectively gave up and went another way with the DBx series that has itself spawned all sorts of editions (and is now reincarnated as DBMM!!)
From my own perspective I guess "Schnellboot" (my WW2 coastal rules) have been through 3 editions. #1 was very basic (produced by SDD), #2 expanded it a lot when I moved to Felix Enterprises and then #3 when Felix closed down and I took all my published rules at the time to A&A Game Engineering.