Skip - I see you're new here and forgive us for having a good laugh at your expense. It's been a long winter (for some of us anyway).
As I think you've deduced, nitrogen in RV tires is really overkill. Every once in a while - sometimes more often than that - a new member comes on and asks a question that has been debated hotly several times in the past. Other topics include (but are not limited to) gas vs. diesel and should I keep the black tank valve open.
We mean no disrespect and realize that for you, it is an important question. May I suggest that all new members make use of the search feature of the forum and read the past exchanges on any subject. Then, if you're still awake, and if there's still an open issue, post a question.
Regards,
Jerry