Hey fellas i wanted to know what the best way is to test a vrf is sog the only reason for asking is i got called to a mitsi vrf the other day,it has 10 units on the system when i put all 10 units on test cooling the indoor units have an air off of between 17 and 21 deg c if i turn one of at a time the other units then get better at cooling,i ran only 3 units on test and they were cooling fine i have done this before and when reclaiming refrigerant it has been sog but i would like to know what other better ways there is to check?? much appeciated

adam