I know of at least one pro owner in the club, According to sources on the net you need to check your motor on WOT as there's quite a few motors out there that have been wound incorrectly and are not giving the right power output.
If you can check your motor on wot with a watt meter and its showing around 12 amp draw it's one of the motors that needs replacing, Many owners have already contacted Horizon Hobby and had there's replaced free of charge.
This was taken from one of many posts about the new pro motor

Original Radian motor, 16.4 amps WOT
The bad motor drew 12.5 amps WOT
The replacement motor draw is 15.5 amps WOT

jeff get yours sorted cos it must be as keith said under powered.

yes i all so have found this out, when im just in on my own will put it on my watt tester.this is my Xmas present im not suppose to have it yet.