I've used one of the Blue bird servos in a 1/10th tourer & currently using it in a F1 car. http://www.hobbyking.com/hobbyking/s...10sec_46g.html

It's a full size servo, and while it's not digital I could not tell the difference between it and a Savox 1251MG servo while they were in the car.
I've recommended these to other people, and they were also happy with the performance of the servo and the price of $15.

Cheers
Rob.