[carpentaper]

so the trick is not to have any touch ups I guess ^^ but it's totally impossible if you are doing commercial site. This site where I'm working at is stupid. They keep adding bulkheads, new walls, cutting the drywall, etc. and everybody is banging and scratching my walls it's ridiculous. and since the primer is not done I'm still responsible to fix every ding and ****.

i get where you are coming from. i am on a commercial site and it sounds the exact same as where i am working. what mud are you coating with? if you are already using CGC green box then there will be no softer mud you can find to touch up with. try coating with all purpose and touch up with CGC green lite finish. also just experiment with the different methods people have suggested until you find what works for you. it does not sound like the tint is the problem i think maybe the touch ups are getting skimmed too tight and compressing the edge like i mentioned before. we are in the same region as far as brands of mud are concerned.

 

[carpentaper]

touch up after prime.... problem solved :yes:

i see how this system works in your situation pointing up after your crews but i HATE touching up after prime. that's two more trips to any job than i ever plan on taking. mud does not go over primer as easy as fresh board. too many passes to eliminate fisheyes. thick, well mixed mud helps.

 

[carpentaper]

The problem is that I've got too many touch ups and the painters don't like that ^^[/QUOTE]

this is the problem right here. i'm not trying to be an ass but i don't usually have more than a few touch ups per room and they are usually so slight i know no one will see them. i've seen crews that must have thirty touch ups per room and bad ones too. you may as well just put a third coat on at that rate. when i do have to touch up i make sure not to skim the touch up tight for two reasons. firstly because you will compress the mud and make a harder area to sand on top of a uniform second coat thus the edges becoming worse not better. second, if the touch up has any depth to it, one skim will shrink too much and you will still see the defect.
my first effort would be to have less touch ups. one way or another more time needs to be taken to eliminate them.