Your suggestion is not new. A general feature that includes temperature compensation for a new starting point has been requested several times.
1: Minor feature request for when you run out of other ideas
2: Autofocus to far out to find focus - #6 by LordBeowulf
3: Automatic adjustment of focus position BEFORE the first AF run is started
In the third thread it was even promised for SGP v4.0 beta. Unfortunately we haven’t seen this feature until now. Nevertheless I don’t abondon hope that it will be implemented in v4.0 (stable branch).
Bernd