I have the GT3 Endurance rim, and it's all metal no carbon fiber. But as you said about your BMW rim, it really does make a difference and I'm going to be selling my McLaren wheel shortly. (Anyone want it, DM me lol.)
I am a bit confused about the comments regarding the issues with the button module on GT7. When I first built the wheel and slapped it onto my DD+, it indeed had all those dual-output button issues and the sticks were indeed reversed. But after I updated my wheelbase to whatever the latest firmware/drivers were (and might still be), it seemed to solve those specific issues. I race almost exclusively on PSVR2 nowadays and have no issues using the button module and have only used this wheel for the past two months or so since I got it. That said, I don't race online so I can't speak to things like the chat button or anything else important for online racing. It also seems like the default buttons don't match what the guide in the manual says, so remapping any buttons is at a minimum a trial and error exercise. You may not even be able to remap them right now at all in GT7, I don't recall. But I can easily toggle everything I need on the car, from brake balance to TC to fuel map, plus the DRS/overtake button auto defaults to the top-left button above your lefthand grip, which is where I want it, anyway.
@PirovacBoy I'm going to try your tip of reducing INT a click or two on this wheel to see what you're talking about. I didn't change my DD+ settings when I got this wheel from what I had been using with my McLaren wheel.