I'm curious, have you tried FSDb 12.3 with Auto-speed correct turned on? I've never been more impressed with the level of improvement, smoothness, and reliability compared to any other update
I thought I'd miss the TACC, and I realized after updating maybe four days ago.. that it was primarily because I couldn't enjoy the previous FSDb experiences enough to use it often. The current update is so much better, that I barely miss TACC.. so now I've been jumping in and out of FSDb on my own drives, jumping out just so I can do some fast things on the road. With my wife and kids, it's the FIRST time they enjoy FSDb (where I don't make fast moves at all) from door to door with ZERO ISSUE
I can't say enough how much better it's been while using it here in the Colorado Springs area
PS - I love to drive, this is just fun for me. So I also could never imagine BUYING FSD from the start.. I'd rather hit the on button for 30 days at a time, never needing to let it auto-bill me. It's enjoyable to see the progress now and then, but I usually let it lapse.. then re-engage the FSDb program when I want to see how things have improved