I think it might be the opposite, TBH. I would guess it's probably closer to 1% using Superfly than only 1% using Firefly. If only because a lot of people are still using older versions of Poser.

This is a very small sample size, though. They might get better results if they put up a survey, maybe offering a coupon for completing it. That would encourage the "right" people to respond: people who actually buy stuff from the RMP.

I do feel sorry for vendors. This must be a pain, having to support Poser 11, Poser 12, and Firefly.