I’ve been using a BenQ TH671ST with my SkyTrak for the past year, and it’s been fantastic. It’s a short throw projector, which is great for smaller spaces, and the 1080p resolution looks super crisp on my screen. In terms of brightness, it’s got 3,000 lumens, so no issues even with a little ambient light in the room. I didn’t see the need to go 4K since SkyTrak doesn’t support it natively. Definitely recommend this model if you’re looking for the best projector for SkyTrak golf simulator.