A few months ago I got TSA Pre-Check because I had a last minute domestic flight and was able to schedule the interview quickly. As I will be flying out of the country in a few months, I just got approved for Global Entry, so I now have two KTNs. I know I can use either.
From what I've read, though, it seems that Global Entry is spotty with whether or not you actually get Pre-Check. I've read some people getting it about 50% of the time. Aside from random selection for full screening, will it be more reliable to use my Pre-Check KTN rather than my new GE number?