presure feed pot

Go for it. The threads should be standard. I assume you are talking a remote cup, which is the only to fly in my opinion. Having an attached pressure cup negates much of the benefit of going to pressure feed. The only problem that I can see with cheap outfits would be that the regulator and pressure gage (for pot pressure) could be of maginal quality. You'll only be using between 5 and 15 psi pot pressure generally so you need an easy to read gage and a decent regulator for the pot. Don't forget that you will likely need a smaller fluid tip on your gun when going from suction to pressure feed. The standard suction feed tip for a DeVilbiss is a 0.070" dia. I think the same is true for the Binks. That is considered quite large when pressure feeding - too much fluid flow for the available atomizing air, at least for viscosities generally used in automotive paints. When pressure-feeding my DeVilbiss JGA, I use a 0.042" dia tip. You may also have to change the needle to match the tip - I do with my JGA. The air cap may or may not need to be changed too. You should be able to get the appropriate tip/needle/cap combination for pressure feed for your gun at the Binks web site.

If you have never used pressure feed with a remote cup before, I think you will find it to be a pleasure. Upside down is a snap. No paint weight in the gun hand. Much easier to stretch over wide areas and keep the spray perpendicular to the surface. Two full qts without stopping to refill. Plus if you like a fast travel speed, you can really lay the paint down in a hurry. The only real downside is harder cleanup, especially when compared with the gravity fed cup arrangements.

Rod