Thanks, Larry--Interesting. I will have to try that. Might try some 409, too? I just wonder which ones would leave residue that might interact (badly) with the paint during the next use? I just finished up with the major brushwork on my Flotsam-Jetsum, and need to find a calm, low-humidity day to squirt on some primer with the spraygun. Painter that I'm not....

I find my brushes remain more flexible and last longer.