I'm old enough to have played the original Dyna-sonics, beginning around 1968. Over the last couple of years, I bought both the brass 5 X 14 and the wood 5 X 14. Love 'em. Thanks to Rogers USA, Steve Maxwell and everybody involved. I use the new Dyno-matic pedal too. I played the original Swiv-o-matics forever, but playing one today would mean 50 year-old needle bearings. (!)
It is great to see you posting regularly again, nobody does equipment reviews better than you Mike! I have the 5" in the same color and I love that drum. It plays really well for low volume gigs, very articulate.
I own the 6 1/2 and I love it. It's a great snare, as you note it's best at high tension. I like that because I can get a great snare sound at a 'low' volume.
When I was in 7th grade (87-88) a kid in band class had a Dynasonic, I had an acrolite but I always played his because it sounded so sweet compared to mine.