I agree with NOT adjusting TEV's after comissioning.
I don't know if any of our commissioning engineers made adjustments back when I did install. But I was always taught that the TEV was factory set for the case (always providing you installed the correct orifice, of course), and that if the superheat was wrong, adjusting the bulb was unlikely to correct the actual fault.
Now I work on Chillers. These things are factory built. However, I have collegues who insist that if the superheat is wrong, the TEV must be adjusted. No doubt they may be right, but I personally like to know that there's nothing else causing the problem.
Am I wrong? Maybe. Any comments?