GM 12 bolt rearend questions concerns

[JD'sTT55]

So if building a 12 bolt (narrowing, buying axles and bearings) which setup is the best? Or do you just have to accept bearing failure, leaks and pad knock back? Is Going full floater the only real solution? But maybe it just depends more on the weight of the car, offset of the wheels and how hard its actually driven on and off the track as to how much problems you actually have.