Mixing Floquil and Polly Scale Paints

[scubadude]

Can I mix Floquil and Polly Scale paints together with water??? I plan to mix up a wash to weather wood. The technique requires mixing 3 or 4 different colors with water, then soaking separate pieces in three separate containers for 12, 20, and 30 hours to achieve varying shades of weathered wood. I only have on hand some of the colors in Polly Scale and some in Floquil. Just trying to avoid spending more $$$ on a technique I have never tried.

Let the debate begin.........