Ricky, thanks for weighing in and providing this information. I feel as if I know you as you correspond with my best friend, Austin trumpeter Dave Laczko. I know your passion for this material and your knowledge of the great man Armstrong.
I agree with you that the mastering of much of this material is listenable. I have several other sources for much of this material (the Columbia Hot 5 and 7 box set, the Portrait of the Artist box set, the JSP sets, the King Jazz cds and more) and I find that the material in discs 4 through 10 in this set are fine for listening, they seem to be pictched properly as well. The material in the first three discs have problems, but many will already have this material in good sound, and hopefully in time Columbia will see the wisdom of reinstating correct copies of the Hot 5 and 7 sides, these are jazz milestones, keystones in fact.
Your liner notes are excellent. And the photos are well-chosen and reproduced. Thank you for your effort in the production of this set, and all that you do at the Armstrong home.