Quick update for anyone interested in the rcrd chassis. It's been a while since I've run my T4.1, but raced this past weekend. It's setup with the rcrd +4 chassis which I don't like at all with a full size pack. I have my new batteries (2250mAh 3s) which I can move around to get the balance I want, and have everything laid out inline. I can tell you that it is as close to a perfect setup (for me) as I can get. It's as light and nimble as the plastic, more durable, and I can still make a 10min main. I am quite happy and would not steer anyone away from this chassis if you don't mind running a smaller pack. Here is a pic of the current setup.
I know it goes a few pages back, but here is where my probe is located for the motor, and the speedo one is just in front of the motor wire posts on the speed.