Good looking tri-tip Jack and thanks to you on this Veteran's Day for your service.
Looks like you were set up for indirect heat, what IT did you take it to? It doesn't look too rare, my wife might eat that. I have finally found a source for tri-tip at one of the Piggly Wiggly's here and am working up the nerve to try one. Will probably cook it on the Weber Performer, need all the tips I can get.