Giant changes measurements on TCR aero

I was in my LBS today and the new TCR Aero caught my eye. At first I thought it was a small but was actually a medium. It seems they have taken 1 cm off the head tube and 2 cm off the top tube. The med or 50 cm now has a 52 cm top tube and 13cm head tube. It also appears the seat angle is steeper than the 75 degrees of 04. Definitely more Tri specific geometry. The measurements on their traditional road frames do not seem to have changed.

Might be worth a look as fit maybe better and the need to go to the smaller frame may not be neccesary. The strange thing is they do not seem to be promoting the changes.