There and benefits and downsides to both OD and Formula and for me there is not a clear winner. It all depends on what you want out of your mulltihull racing experience.

As for the Tiger OD class, it's now offically a dead boat, but the N20 has been a dead boat since the F18HT came out and we all know how that turned out.

I love my Infusion and if it was a successful OD class I'd probably move away from the formula class. Right now, formula holds the best promise for growth IMO so that's were I put my time and energy. I'm not easily seduced by the geewiz that's cool factor if I were I would have gone to an A a long time ago.