Amerique warming/resting

I just got my Amerique last week and I’ curious about the warming mode the smoker goes into once the time/probe temp hits its target and resting. After smoking some ribs I usually wrap them in foil, cover with a couple of towels and let them sit on the counter for about 30 minutes to rest.

I’m wondering…

…warming mode seems to simply be setting the temp to 140. If the meat is done before the time is up can I go to warming mode just by setting the temp to 140?

…how long can you realistically keep something in warming mode without the meat spoiling or drying out?

…any constructive criticism on my resting technique?

…if I leave the ribs in the smoker on warming mode for 30 to 60 minutes. Would this be considered the rest period or do they still need to rest after this?

Thanks in advance.
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