I was impressed to see a guy with that much silver hair and that many brass players use a matched grip. Usually, those guys have formal training that took place in the era where traditional grip was the thing. There were and are amazing drummers that use either, so it's largely pointless to debate which one is "better" or "correct".
Heck, I still use a German bow on my bass. It's not technically as fast as the French, but my limitation is my personal skill - not the equipment.
