I don't know why these things always come down to a pissing match.
I don't recall exactly who brought up an AVC, but you keep referring to an AVC in the system as an air release. Don has a 2-stage jet pump. He does not need an air release because he has no excess air. You don't put air releases on a well system unless it somehow makes air, like some wells near here that are naturally gassy.
I just love it when a DIY tries to tell me how a well system works. Let me rephrase my answer. It's not about the pressure of air in the tank, because pressure is always controlled by the pump. It doesn't matter if you put 20 psi in the tank or 60 psi or air in the tank. The pump controls the pressure, not the air. What one tries to do is achieve about a 50/50 mixture of water/air based on volume. The volume of air in the tank determines the drawdown.
Heck, I did one the other day and supercharged it to 2/3's air. Probably had close to a 15 gallon draw down on an 82 gallon tank. Also, here's a little trick. Most pressure switches are set either 30/50 or 40/60. Tweak the switch to 30/60 to get a little better drawdown.