I removed the roast at 125º as suggested ... tented for an hour as we got everything else ready. Rechecked internal ... 127º
Now I like rare ...but...next time I will go nearer to 140º before removing. Also will use more rub, however I prefer to go light rather than make it too strong.
Going to braise bones and leftovers today with extra rub and spray.
The ABTs were my first ... but definitely not the last ... yummy!!!
Stuffed with cream cheese, bacon, fresh minced garlic and Cajun seasoning.
Hope everyone enjoys the pics .....

ECB on back step out of wind as best as possible ...

View of yard behind smoker just before lighting ...

Prime rib ... rubbed and ready!

ABTs also ready (my very first)

ABTs just before removing ...

The Prime rib after about 3 hours.
Sorry ... due to rareness of roast and not wanting to shock people who may be shy of blood, but mainly 'cause we were starving ... no serving pics!
Learned a lot and will continue to get better ...
Thanks to all for their help!