Do you thin the paint about the same as with a siphon gun? What else do I need to know?
The consistency of milk and you can gauge that as you mix in the reducer. Lift the mixing stick and watch the paint drip off.
Devilbiss GTI HVLP or PLUS HVLP guns with 1.3, 1.4 tips
Sata HVLP RP 3000 or HVLP RP 4000 without digital displays. RP - Reduced Pressure.
Get a RP gun and catch up on the new stuff.
Sagola 4500 Xtreme HVLP
Notice the attachment I made at the bottom of the handle. It has a gauge but no cheap ChiComm regulator.
The standard gun handle regulators reduce the air flow by 12%. I know because I measured it with three different paint gun brands.
Use high-flow hose fittings. The ones here are made by Devilbiss and they were just a few dollars each. The standard air couplers are heavy,
cut down air flow, and the internal springs will rust.
Cashiers Auto Supply is where I bought my Sata's. They sent me a pile of those plastic bags and connection pieces for throw-away paint ops.
They were free but I don't use them. Cleaning a gravity feed cup is easy and I'm not sending a bunch of plastic with dried on paint to the landfill.
The most important thing is having a clean paint area. I use a booth that I can walk into and close a door. There is a fan providing down draft air.
(much more can be typed so specific questions are better...)