Hi! I just got the Zildjian K Constantinople Hi Bell Thin 
Low 22" Ride. Now discontinued. Zildjian still produces the Hi Bell Thin 
Hi Rides though. My Thin 
Low weighs 2325g and has a fundamental note of C when crashed. Perfect for jazz as C is a common note for jazz keys such as: C, D, Eb, F, G and Bb. Therefore, the cymbal blends with the music. Compared to samples of Thin 
Hi on cymbalsonly.com that weigh less than my Thin 
Low, mine is still lower in pitch. So I'm very happy. I guess it has to do with the cymbal profile, mine being a little flatter than the Thin 
Hi. I'm pitch crazy so don't mind me. 

 I'll have to add a Hi Bell Thin 
Low 20" for a left side ride and I'll be good. For hats, I'm currently using Istanbul Mehmet Light Hats that weigh 950g top/1100g bottom.