Hi Jim,
Wanted to let you know that Tom is correct. the Duralac product can be tinted to any BM colour but because the bases are different then those from BM directly, you need to find a dealer that knows how to do this. I found a dealer in the states that has formulas for tinting the duralac products to match the most popular BM products. Most BM retailers do not know how to do this.
Also, I have the same setup that you do, except I have a Q5 which I dial down to match the output of the 4 stage from Fuji. Using the PPS system as well, I found that I can spray Advance and Select Regal, which is thicker, without any thinning with a 1.8mil needle. If you don't thin it will dry faster and risk orange peel. So I add 5% of water for Advance and 5% BM extender for Select Regal and I get a perfect finish.
These 2 paints don't like air at all. The less air you can introduce to the paint the better the results.
Thought I would share,
JC