I was able to see Track staffer Jason Dee throw these last night. I think his Desert Heat is drilled pin in palm, CG @ 45 deg (unless he drilled up another one). I wasn't able to see how his Solution PP EX was drilled. The surface prep of both balls looked very much the same: it was a very high gloss polish.
The Solution PP EX definitely has awesome backend. It looks like it revs up a little sooner but has A LOT for the backend. The Desert Heat looked a lot more mild and it had to be pushed out into the drier area for it to hook. The Desert Heat looked like a good 2-4 ft. later.
I don't know what lines he was playing but this is what I saw as a general observation from a few throws with the Desert Heat and game of the Solution PP EX.
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Dino
Evolutionary. Revolutionary.
Track