Have not heard much of Sanjay but did attend this performance and was glad I did - I now get why he has become such a superstar, with some comparing him with some of the greats of yesteryear in terms of flair and flourish at least. Not saying that the comparisons are justified

just that he clearly had the pulse of the audience and there was not a lacklustre moment in the concert, which is tough to maintain for a 3 hour plus period. Very few left before the RTP and most seemed to stay until the very end.
Separately, those superfast phrases pppp and dddd that an earlier poster referred to - they (and other phrases in the swara passages) felt like they were "instrumentalist-inspired" phrases, especially those performed by flute and violin players. Dr M Balamuralikrishna's swara singing also sometimes is evocative of an instrumental style. They're fun to listen to, as an occasional flourish in a vocal concert. But instrumentalists seem to go "nuts" (just saying) with some sangathis, and some swara passages (with very short and fast phrases, or jumping octaves rapidly, or doing some ultra-jantai prayogas) - in a way that vocalists rarely do. I wonder if that is because of voice limitations relative to instrumental possibilities, or if they are just not considered aesthetically pleasing by most vocalists.
The entire team on stage seemed to enjoy each other's music so much that it truly felt like a team performance - that does not happen often enough I think in kutcheris today? Are there other teams (TMK, RKSK, KAP for example) that work very well together? Would love to hear your opinions on other such long-standing collaborations that show great anticipation and enjoyment of each other's music.