Not sure I could say I don't like my 400. But it I actually like my C.O.B. Supra less than my later Ludalloy Supra. And my favorite snare in in that family tree (or right outside that family tree) is my keystone badge acrolite. Actually the acro is probably my favorite snare period as far as sound goes. Just something about it. I try to think of sounds as different rather than better or worse.....but that does not always work....which is why I love my acro! The Slingerland C.O.B.'s sound really good also to my ears as well.
Mate I agree, my coveted Supra COB does not stand up-to my later 60's 400! I can hear that they're close cousins but the 400 has a stronger mid tone and doesn't white out on a heavy backbeat. My 400 is a babe in the studio as is my 402. My Radio King is awesome and I have a 60's Wood Gretsch RB that is stunning. In fact I have around 28 snares. However the 400 makes my life easier, tunes all over the shop quickly and takes it hard or soft(oooh Mrs!)
I have to add though that it can suffer from room/stage accoustics when out playing live where my wood snares don't so much.
For anyone not liking the 400, don't lose sleep, there's plenty more to choose from! Gretsch COB's, those Sonor snares made from Klingon battleship metal etc, Dunnett, Noble and Cooley's. Yamaha make nice stuff. Funny thing is everyone has tried to re-make the 400 and IMO never quite done it better.
Now back to the Cider! Ooo-are