Yes indeed. I agree that the Tommy McClennan was a crown jewel of that series. I play it quite often. But I would still reserve the supreme crown for the Robert Lee McCoy (Robert Nighthhawk). Before that disk, all reissues of that material were in absolutely terrible sound, with some tracks barely audible. That disk was like a dream come true for Robert Nighthawk lovers.
For Blind Willie McTell fans, also be advised that JSP just released McTell's complete known recordings from 1927-1940 on 4 disks at a very low budget price (about $21).
The McClennan and Robert Lee McCoy were indeed crown jewels, and deserved much wider attention than they apparently got.
I assume the wonderful earlier Bluebird series was killed because of poor sales. Let's just hope this series will do better, even though the current reissue programme might not be as extensive as the earlier one promised to be. Anyway, I'm glad they released the Blind Willie McTell, which wasn't part of the earlier series.