[mcjjordan]

i had this a few times i found i had to align the steering so no toe in or toe out and true tyres down alot on the front also lower the whole thing down to just above 2mm ground clearance then even now depending on which track limit the steering with the controller depending on which you use .....
i too run jap med on front and pinks on rear only ever needed addative on rears when tracks cold.
also found that i was 'cocking' front inside wheel on fast corners which sometimes led to a roll so fitted hard front springs -after experimenting with washers on king pins to stiffen front up suspension and also foam pads under rear plate to try to limit amound of roll.



hope this helps if only a little