I appreciate you guys responding!
I completely understand about the throttle inputs. I'm only going so aggressive to show that it simply doesn't spin out to the right no matter what I do. The spin-out problem makes itself known on the track in tight corners with smooth throttle on exit and in fast corners on the edge of traction. I can't carry nearly as much speed to the left without spinning out as I can to the right. I've run VTA with some state champ VTA guys and I do okay, I'm definitely able to drive the car properly during a race.
I do have a bearing kit in it and an aluminum servo arm. I used shoulder screws and washers to get proper drag arm alignment with the servo horn.

It is possible this is due to the Traxxas motor and the torque coupling, but I have plenty of other shaft drive cars of different scales with brushless motors and I don't see this pronounced an effect.
These are definitely just a step above toy grade as far as sloppiness I agree. This isn't a knock on Tamiya, my very first car was a grasshopper in 1985. 40 years later my daughter got to build the same kit!
The class I'm racing this in is a plastic tub chassis class. We all run the Traxxas 12 turn and yokomo 28A's. Outside of that there are no rules. I just ordered a yokomo RS 2.0. it's the most traditional four-wheel drive belt touring car I can find with a plastic chassis. I have a feeling this is going to make all my tto2 problems go away. 😉