Ongoing Vallejo Surface Primer (White) Log

OI will keep updating this post as I try to make white Vallejo Surface Primer work.

10 Jan 2014
Model: 15mm Stug (BF)
Airbrush: Paasche H, #1 tip, color cup, tip four turns up
Primer: unthinned, shaken
Pressure: 15 PSI to start

Results: Adequate coverage.  No tip dry in about 1/3 cup.  Stippling. Raised pressure to 25PSI to alleviate stippling, then tip dry.

Based on internet research, I have two issues:

• The "stipple adjuster" in front of the trigger button was halfway out.  According to what I read it should be screwed all the way down.  I will try that on my next attempt.
• There should be an o-ring (packing) around the threads on the needle.  There isn't.

There also isn't an o-ring on the aircap.  There was but I removed it because it was in bad shape.

Update 13 Jan 2014: Putting this on hold until the new parts arrive for the Paasche H and the Badger 250. Then I will revisit. I am going to have to spray the primer on to something nonabsorbent. The cardboard doesn't work; it absorbs the paint so I can't see the dot pattern. Maybe if I rattlecan it first in a contrasting color. 

Damned OCD.