I built my '11 into a '12 last night and I was delighted at how well the 12 balanced with straight electronics. I have an RS Pro, D3, 409s KO Rx, 9550 servo and a no frills 5000 Venom pack, and the car required only 10 grams battery side to balance. On top of that I am running steel turnbuckles, anti-tuck rear facing body posts, a 5th front body post, and a fan and the car was still 1340 g ready to race. LOTS of room for electronics. I don't remember being able to mount my PT to the chassis on a sedan for a long time. The transverse servo mounting is very nice. Can't wait to run it Saturday.