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This is fixed with the upgrade to the Tamiya oil shocks. So much so, That I now run a 13.5 turn brushless in mine, and she handles beautifully. Well, she won't win any Gymkana special stages, but for general bashing and fun driving, it's a lot more controlable.
I had in mind how cars behave built out of the box ... spending an extra 50% over the kit price doesn't really count in that regard