when you close the door softly, there should be 2 "clicks". Is the glass in the doors? if not, don't spend a lot of time adjusting them now or they will be off with the glass and regulators in there. if you are not ready to put the glass in, then you need 52lbs in each door to compensate.
Adjusting the doors is a bit of an art form and takes time, but it isn't that hard. You need to get the striker out (slide towards the outside) so you can get the door to latch, then you can start to get a sense of what direction it has to go and how much.