MadRat weight distribution?

[zagonielod]

hi guys! here's another question I've bought today some weights. 1x50g and 4x10g
How should I make a good weight distribution out of theese? adding slowly more and more weight and watching how the car handles? and where to put them? on the servo, on the sides? I know, it depends on the track I will run. But I thought, there is a standard thing which would help in any case. Thanks in advance!