I have read some of the threads about this topic and also the related article by Mr. John Luf. I just want to have some confirmation or otherwise regarding my understanding from what I have read :

1. Check for lifted supports in the operating cases.
2. Using a +Y support at the lifted node, check for thermal stresses and sustained stresses.
3. Check "hot sustained" using either
a) proper load combination (e.g. OPE-T)
b) make a separate file and remove all lifted supports (check only the sustained stresses)
4. and so on...

In general, the correct thermal stress is with the +Y and not without it. Am I in the right path ?

Thanks,
Stress Rookie