Hi P and welcome!
Thanks a ton for the testimonial! Here's an idea. Why not just call GetMyInfo and then call GetUserInfo with the data from GetMyInfo. You can have a rule with three actions - 1) call GetMyInfo, 2) set a value in the GetUserInfo query based on the return of step 1, 3) call GetUserInfo.
Good luck!
Patrick Halstead
Project Manager at Qdabra