No! It will definatly cure the problem!
Ok heres a more technical answer...
AMG was correct. A stiff suspention setup will make the problem worse.
Traction roll is induced when the CG (centre of gravity) is high and the roll centre is low. The roll centre is the point that the car rolls around and dependant on the geometry of the suspention parts.
The bigger the gap between the two, the bigger the roll moment. Reducing the CG is the best way to combat traction roll but the most difficult. You can increase your roll centre by increasing the angle of the upper suspention link.
Modern RC cars have a low CG at the front and high at the back giving a stable car but this will give excess front grip on the outside wheel into a corner increasing traction roll problems.
Soft suspetion at the front with the stiffest roll bar and soft at the back with no roll bar will likely help