Well, I don't have a whole lot of experience with acoustic drums, but they're really good as far as I can tell. And also, It's a taste thing. I like them, but I would've bought 900 crashes if I could have had afforded them (Jeez, I'm really not that good with tenses Please forgive me!). My absolute favorite crashes are the signature full crashes, and the 900's approximate that sound better. But these are a better bang for your buck. And also imho, the heavy crash sounds better, but they complement each other nicely, even though they sound quite similar - they're both 18" so yeah, I don't know what I expected. But you can definitely hear the difference, so all in all I'm happy with this setup.Lovely kit, any chance of a mini review of the PST7's.