Ok firsty i would try softer springs all round, secondly try laying your shocks over, next try more rear toe in, and yes longer links gives more grip especially in the middle of the corner i use long links all the time. If you download my setup off www.corally.com it will work for most grippy and slippery tracks. Just from that setup go either softer springs or lay the shocks over and the car will be good. I also run roll bars everywhere i found it gave the car more grip and steering. maybe go 4 mm droop in front and 3 in rear.