Roadies, typically, don't like Flo. They're awfully heavy by comparison to carbon clinchers and even non-weight-weenie roadies care more about weight than aero. They're really most popular with triathletes; I understand BeginnerTriathlete has a big thread about them as well but I can't stand that place.

Further, the huge mindshare still goes to Zipp and HED. Flo managed to crack that some with the tri scene, but others like November and Boyd have released proprietary wide U-shaped carbon clinchers to a chorus of chirping crickets while the market still flocks to the big 2.1.