In my opinion, You will likely not need to use an accelerator in this climate.
Spraying WB lacquers and wb poly should be pretty easy. I have sprayed Target, Deft, Varathane, Polycrilic, and ML Campbell. They are all very similar in how they handle. My favorite WB is Target coatings.
Adjust your sprayer to atomize well with the lowest amount of air to reduce overspray. For me, I tend put too heavy a coat on vertical surfaces and have to be careful of runs. The only way to spot them is with a raking light. Not sure why I do it, just a bad habit I need to break.
If you stain projects get some dye (I use trans Tint) and mix it with shellac or a coat of finish to begin doing your coloring. I find dye gives a much more even color with little to no blotching.
If you didn’t get it, consider purchasing the whip hose. It makes the gun much easier to handle.
These units do not do well with latex paint. If you want something colored, you can get the water based lacquers tinted. I have used Target coatings and a white WB lacquer from ML Campbell with good success.
Using wb finishes means you will raise the grain if you do not preseal and you will need to sand after the first coat to knock the grain down. I personally sand after the first and before the last coat. I have sprayed 5 coats in a daylight no issues. For me, I find it wiser to lay down thin coats versus heavy coats to minimize runs and drips. A lot of the time it will look cloudy, but it will dry clear.
I have only rarely had orange peel (took me a long time to figure out what that meant), and every time it was adjusting the air or fluid flow.
Although I like the WB lacquers, I have found nothing that sprays as well as solvent based lacquer. It lays down like glass, dries fast, and can be recoated quickly. The downside is that it is solvent based and without a spray booth needs to be sprayed outside. I remember reading Fuji’s documentation where it says to spray it wet like a lake, and in retrospect, it makes sense as the air from the turbine gets pretty warm. It is amazing stuff.
Cleaning the gun is straightforward. Run whatever medium you use for cleanup through the gun. I have stripped my gun down a few times, and only once did I find it was not as clean as it should be. If you do use the gun to spray color, be especially diligent in cleaning so when you spray a clear you don’t get unexpected surprises.
Good luck with your unit. You will love it.