Completely individual. People have different shaped backs, different width shoulders, hips. Then you have variations in bar width, height, hood position etc. There's no rule, and you certainly can't take time savings from one rider and apply them to yourself.
I'd say fastest position on a road bike is anything that looks reasonable that you can hold well and sustain decent power for the duration of whatever you're trying to race.
Completely individual. People have different shaped backs, different width shoulders, hips. Then you have variations in bar width, height, hood position etc. There's no rule, and you certainly can't take time savings from one rider and apply them to yourself.
I'd say fastest position on a road bike is anything that looks reasonable that you can hold well and sustain decent power for the duration of whatever you're trying to race.