I'm pretty aware of what happens on a 2WD buggy since that's what I run and what I tune the most. Camber links and roll centers are used to fine tune cornering. On a 2WD buggy you are going to end up running a heavier front oil than the rear anyways. On my vintage RC10 (the car I have been playing with the most lately), I run 40W in back and 60W in front with #2 pistons all around but the spring rates are still balanced. My front oil is 50% heavier yet the car has about 45% less weight up front than in back. A different piston could change that ratio though. If I were running 40W all around, the back end would pass the front everytime I get on the brakes.

One other thing to consider is to reduce total brake strength and learn to drive a bit differently. A 2WD rc car does not have front brakes. Try to drive a real car hard into a corner using only the emergency brake to see what happens! You need to drive a 2WD differently than a 4WD as a result.