Our club is down on members from in the past, I would say 30-40% and many of the members that left were 2.2 shaft drivers who chose not to or couldn't afford MOA re-tooling. They hung in there for awhile running with the fast growing MOAs in the 2.2 class, but obviously didn't get the same satisfaction and stopped showing up, and many had been crawling since the beginning. I'd be willing to bet if there was a true 2.2 shaft class, many would be back.
Finding judges has always been the trick, but we used to run 30-40% more drivers at any given event so for us it wouldn't be that much of a stretch. I liked the bigger club it made competing more challenging. The people we have left are the original hardcores and some addicted new ones, they are fantastic members. But it would still be nice to have a bigger turn out and maybe see more new members like the old days.
We've have a very small 1.9 class and most of us don't even stay to watch. You have to admit watching a class your not interested in is a drag. Our Super class is invisible to most of us if they run at all. So for a club like the MNRCRC a true class featuring 2.2 Shafties might be the answer to us and other clubs as well. To refresh dwindling memberships with members who own shaft rigs that are no longer competing would be good for the hobby. Plus it's a good starter class, we never had a robust Sportsman interest, it was a more or less flop.
If you think that having a 2.2 shafty class is going to bring back in everybody who left, I'm afraid you'll be disappointed. We had the same thoughts when we started the Sportsman class. We had a couple people come back for 1 comp, but after a year of running it, none of the old guys who left the hobby have returned for good. Most have moved on to other things, and the couple who did try to come back found that the sport had left them behind, and they still weren't competitive, even against other shafties.
If you want to increase attendance in a particular class, as a club, you need to promote the class. Run the class with poor numbers first, before 2.2. Its just human nature that people will leave after their class is over. If they have to watch the class run before they run, then people will see that the drivers are having fun, and you might just pick up attendance in the class.
My suggestion if you want to try to have a 2.2 shafty class is, at the club level, to run them with the regular 2.2 class, but have a seperate trophy or series points for the 2.2 shafty drivers. I often hear people complain that shafties can't handle the breakovers or climbs of the 2.2's. I call BS on that. If I have time, I run my sportsman on as many of our 2.2 courses as possible (after the comp). Granted, I'm not on the clock), but, other than tight sections where it would be easier to negotiate with dig, I typically run my sportsman truck nearly as well as my berg. Just like any other class, a well setup truck with a good driver will do well.
What I've found about most of the people that complain that their shafties can't compete is that they are the same people that don't want to put the time and effort into making their trucks competitive. When those people tried running in sportsman, they were complaining just as loudly, but it was about the top guys' trucks being too high dollar/high tech, etc...