Hello, I've been drumming for about 12 years and have been using A customs for about 5 years, and I've had a 17 in crash and 20 in ride for about 5 years and a 16 in for about 3 years. Recently the 16 in cracked and I don't know which cymbal to get. I love my 17 inch crash , but I want an 18 or 19 crash in that sounds brighter than the 17. So my question is what is the difference between a normal crash, projection crash and fast crash? If anyone can help me out, thanks alot!!