CM Eisenhart, 

Since GM Lee, Haeng Ung was a student of GM Uhm, Woon Kyu, I think you just took the round-about way to get back to Chung Do Kwan! :)

My affiliation is Kukkiwon, with Chung Do Kwan lineage though I have had the privilege of training with MDK and ITF/Chang-hon instructors as well.