It still takes some trial & error, depending on the track, but I think
works well enough.
(That's the Magic Data view in TSM)
The power like that seems to work well at every track, but you might need to change the grip depending on the track.
At Sepang, for example, I had to drop the Grip by 5 for Ace and Pro and, at Istanbul, I had make the Ace and Pro grip 490 and 480 respectively.
I imagine that at the A1-Ring, you'd have to do something similar.
But it's worth pointing out that my mod has 1000 BHP engines and lots of grip; so what works for me might not work for others.
So there isn't a 'one size fits all' set of numbers, but I suggest setting them to like the above picture and then tweaking them as necessary.
F1 Graphics Swapper ---
Lensdump - Renders and Screenshots ---
GP4 Performance Generator