Originally Posted by petgeh
Do you think it's good to turn the crash cymbals flat.
Nope! Only if they are pretty low.
From Sabian website
''These cymbals should be positioned fairly flat and angled only slightly toward you, so your stick can slice across their edge. A cymbal that is angled too steeply is restricted from moving freely and it will suffer the same stress as if it were bolted down too tight. This will restrict the sound and can lead to cracking''
the angle could be ~5-10º