First of all thank you for updating Carbon ROM for our Xperia V.
I flashed build 25, and its so smooth for me (one of the most smoothest builds ever)
No errors so far.
There is just one problem, kernel of this build is 8MBs while older builds were about 11MBs. It's OK, phone boots successfully but problem is recovery. When I wanna enter recovery the orange led turns on and nothing happens. Just a black screen.
No problem for me, I use Neo Kernel