Virginia will be a lot different than Montana. I have lived in Billings, Montana and visited Virginia a few times and it is quite different. I am sure he will do great though. It will just be a time of adjustment and change. I know anytime I move my basal rate and insulin needs seem to change. The other thing when moving is to compensate for the time change. The first time I did time change as a Type 1 it threw me off a bit. Virginia is Type 1 friendly! Good luck with everything!