I forgot to add too my other post I find that when spraying continously even just thinner after about 10-15 eec the spray stops than continues. I have an aztek 470 using 30 psi's.

What kind of compressor or air-source are you using?
30psi sounds a bit too high.

Don't know about your AB in particular, but clean it.

As to 30 lbs of pressure?.....put politely, turn it down to about half that.

Tread.

Or instead of ABing, just go out and check your bicycle tyres.