I will speak up also for the double actions. I had been happily using a bullet-proof Paasche syphon single action brush since the mid fifties. Then at the NMRA Sacramento convention some 7 or 8 years ago, in a moment of exhuberant non-judgment I fell for a great sales talk, and purchased on first sight at full bore an Iwata double action. I have never looked back, and I can also admire the Iwata for the very finely fabricated and finished instrument that it is. I love it for its ease of use and resistance to clogging.
The Paasche is a classic that takes a back seat to no one, however. It is American-made, unchanged since inception, and with skills more expertly applied, it still can do just about any job our hobby requires.
Denny
Denny S. Anspach, MD
Sacramento, CA 95864