ORIGINAL: Osirisf16
ORIGINAL: 46u
If all you are going to do is bash just about anything will work but if you are going to race I would recommend at least 170oz of torque and a speed of .15 or faster for steering. How much are you willing to spend for a servo? If you ever run good servos you will never go back to the cheap ones.
I suggest more oz, and of course a speed of .10 and quicker though.
Then why did you recommend the 5625MG?