With a torque biasing diff in a FWD car, you REALLY need to have both hands on the wheel under really hard acceleration. The rule to remember is: the car will go whatever way the tires are pointing. If the car hit a bump or crown while under acceleration, it WILL go that direction! This is exactly why so many SRT-4's ended up in ditches. Once you get used to it, it's not a big deal, but you need to realize that when you ask for power, and the engine gives it to you, that you have to be ready to tell the car where to go. It can get hairy fast!
It is a VERY rewarding feeling, however, when you can set the car up for a corner, nail the gas before the apex and the car simply pulls itself around the corner. This is only possible with a FWD car that has this type of diff.