I hear you and have been there and done that. My suggestion is focus on your driver and your program. It's good to ask questions and look for suggestions but trust your driver. You guys have found victory lane enough to know what works for your program. The experts are giving you the best advise they can from their knowledge and experience. Keep in mind many are not in the same geographical area / dirt, on the same tire, or dealing with the same size driver. I have no doubt that they share the best information or what has worked for them but that may not be what works for you. A few years ago I had to stop sharing what we were doing on our chassis b/c people thought I was intentionally misleading them. Awhile back there was a guy on here struggling on the same chassis. Plenty of suggestions were given but they couldn't get a handle on it. I PM'd him my set-up and it happened to work for him. Our drivers were similar builds so that's my guess on why it worked for him but not for others.
You made a great choice with selecting BRB for support. Jared at Diamond Cuts would be another relationship I'd try to develop. These guys will know the tracks, chassis, and tires.