As I first noticed when listening to the Bandcamp stream and has now been confirmed by the official FLACs, while the box set was well-recorded, the mastering is too loud. Not good imo. I'll probably be putting the still sealed physical box set up for sale on Discogs or eBay once it arrives in late August/early September. (Or here if anyone is interested.)
There was a similar issue with the third Leo Records standards box, 19 Standards (Quartet) 2003, released 2010, which was significantly louder than the first two box sets from the 2003 tour released in 2004 & 2005.
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Also, I had contact with Jazz Messengers. It is doubtful they'll be able to get the box set in stock.
"Good afternoon,
Thanks for your message.
Hopefully we will. I mean, we are doing everything we can to get it, but, we truly don’t know if we are going to, sorry! According to his Band Camp is already sold out, but, it might be available through any of our suppliers.
If we have any luck bringing it, we will announce it for sure!
All the best,
Jorge, Jazz Messengers
Customer Service"