Do you ever get to a point where, you think that with all you've learned tuning your car, an possibly others, that maybe you should just start over fresh, and use all of the learned information to maybe get an even better tune what what you've been working on for the last 3 or so years?

After tuning a friend's car last weekend (1971 Olds Cutlass), there were a few things I learned on that one that I'm sure I could apply to my car. There have been other cars too, that I've learned from, and I'm sure I will always learn while tuning.

So I'm thinking about going back to a starter bin,likely #4, like I started with long ago, and then tuning fresh, to see if I can actually get it the way I want.

I can always load up the current bin if I don't get it quickly.

So does anyone get to this point sometimes?