Barry,
I just clicked 'yes'.
This is all together an amazing performance, similar to the RCO/DG recording but better recorded and in some ways better played. The Tanglewood BSO concert was great too, although the sonics are so and so, and BSO makes a few noticeable mistakes in I. Both the great performances and an ideal M9th in my book. However, the superior sound tips my recommendation towards the IPO version.
John