Variation in Atty Output....

I have 4-5 attys for my 510. Two produce fantastic vapor and throat hit. The others produce considerably lower of both. I've cleaned the low producers and it didn't seem to make much difference.

I wonder if there is anything else I can do to bring the wimpy attys up to par with the fantasticc attys ???

 

Can you tell me, or refer me to a post on how to do this type cleaning.
I must soaked them in alcohol and rinsed w/ hot water