woah that is "ultra thin" indeed!I also have an Agop Turk 21" Jazz Ride. It is ultra thin (1240 grams) and has a nice low tone for a 21" ride. Its bell has a lower tone than the 23" MC Signature and is not as cutting. It is dry but has a nice bit of wash to it. Overall it is somewhat of a second cousin of the MC Signature Ride, similar but not the same. It's a great ride for lower volume acoustic/jazz where you want more stick definition and minimal wash and you don't need a cutting bell.