Bob,
I don't race in class sanctioned events, but I do race in a local "race what you brought" style race, where I have participated both with my DS and another boat that has roller furling.
From that experience I cannot see that the furler would give substantial advantage during a race, but it's a nice way to depower the boat while milling about the start. For the actual start, you probably want the jib out to be sheeted home, so I'd say furler or no makes no realistic difference.
Sailing with furled jib, that is with main alone, changes the sailing characteristics of the DS in a generally not beneficial way, and I would not elect to furl a jib in trying to race except perhaps in "survival" conditions.
I know you had some fun races with really high winds, but, I for one, would not have started in them
Partially furled jibs wouldn't seem to be attractive either, because typically, what people have for small boats are furlers, and not roller-reefing. If you were to install the latter, you would probably sacrifice performance when not furled.
While it would not affect me, I'd suggest to the class to allow this, as I cannot see any tactical or performance advantage where people would feel obligated to mount this to stay competitive.
My 2 cents.