I don't have a good recollection of this climb. I'm writing this trip report more than two years after the fact and without any notes. But here's what I remember:
A good climb. Some really fun and interesting climbing, unfortunately broken by large bushy ledges. A good-looking line from the road, though.
The route is described in the Urioste's red book and follows a line just slightly left of the center of the Frigid Air buttress. It has 11 pitches; some of them are really short. I used the pitch numbering used in the guidebook on the figure captions but we ended up breaking the pitches a bit differently.
The first pitch goes up the right side of a black flake (5.7). If I remember correctly there is a bolted anchor at the top of the flake and I stopped there instead of following the thin crack above.
I started up the thin crack above, then traversed left toward the tree. The drag was not too much of a problem since we were climbing on doubles.
I think I might have combined (I don't remember exactly) pitches 3 and 4.
The 5th pitch is a really fun one and follows a 5.7 chimney with great pro. I usually don't lead any chimneys because I'm just a big chicken when it comes to climbing with sparse pro. Eric usually gets all the chimney pitches but I begged him to let me have this done!
Eric led the next 5 pitches. I think he combined pitches 6 through 8. The offwidth of pitch 6 and the chimney of pitch 9 provide good climbing.
I got the final pitch, a great 5.9+ finger crack, one of the best pitches on the route.

Frigid Air Buttress, Red Rocks, NV