Probably the best brush-playing album of all time is Dave Brubeck's Time Out with Joe Morello laying it down (an obvious choice here). And he used a Ludwig 5x14 Super-sensitive to do most of his work then (he probably had a Supraphonic as well). You would think with all the great brush playing that's been made over the years it would be obvious that head choice and technique are the real real to having a great brush sound. Most of the master brush players probably only had two choices of snare drum: metal or wood, and most likely 5 inches in depth. If you can't say it on a standard snare with a medium-weight coated head, then you need to do some serious woodshedding.
I love Peter, (and a lot of great players, as a matter of fact), but if being close to this business has taught me anything, it's that you can't really believe any kind of product recommendation made that is said to help you play better. And Peter is kind of a charlatan in a way, considering he's changed drum companies several times already, and has just recently switched back to Remo heads too. And in his last YouTube video, he was raving about how the Remo heads now speak to him better than they used to. Other players have left Remo due to "quality issues" too - and both of these are legitimate concerns.
Getting back to Peter, if he were to talk about some of his favorite recordings he's made over his expansive career (and I'm sure somebody has already done an interview with him on the subject somewhere) I doubt the equipment he used is even going to come up - the man sounds awesome on anything he plays.
I would just strongly suggest discovering what works for you, but developing your technique to a point to where it doesn't really matter what you're playing on because technology is changing all the time - there's always going to be something out there that makes you play better.