I was just thinking the same thing yesterday, it should be way more organized and there should be a central site where all testing centres report their findings to, LSD is a sophisticated drug so i'm surprised some Lysergic nerd hasn't tried to do this
The thing is whatever you read your blotter may still be a copycat, but if you know it's a good source it would be good to know how many micrograms blotters are actually laid with if you wanted to reliably dose, but then one blotter can be half the potency of another on the same sheet! I can see myself just buying crystal because blotters can be so unreliable