Just bought the X Hot this past week -
I can't say much about it on the course tho' as I'm waiting for mine from Cally.
LSS - I went to a Golf Digest Top 100 fitter and demo'd a # of drivers on a Trackman.
Tried the new 2013 Cobra Amp, Nike Covert and Cally Hot X.
It was initially neck and neck between the Nike and Cally #'s wise - spin, distance, flight and it looked like the Nike was going to win out.
Scott Ward, my fitter, was called away later in the session and as I said it looked like the Nike was the driver I revisited the Cally as it just felt better.
I can't really explain the "Feel Factor" but there was something about the driver that felt more comfortable while I was swinging.
While Scott was away I adjusted my swing plane, address, started swinging away and checked the #'s on the trackman - all the data told me I was hitting the Cally a better than the Nike. When Scott came back I showed him the trackman #'s and...I felt comfortable enough at that point to pull out the card and buy it.
Now while there is still some snow on the ground here in CT I'm headed out for the first round of the season on Tues.
Picked up a box of the Wilson Duos - will let you know what the Hot X does in real world conditions.
rob