I was on the phone with Nathan today and gleened the following info from him. Cub Crafters is progressing along on their own Type Certificate for their Top Cub, which is kind of old news. The new info I got is they are also working on their own gross weight increase. Sounds like maybe in various stages up to a max of 2300LBS. The #2300 sounds like it would only be available with an all 4130 fuselage, so some lmitation there. My guess is if they operate like Wipline, the #2300 would only be available on their "NEW" Top Cubs. Nathan also said they anticipate the gross weight increase to apply to floats other than Wipline's.