Is there anyway of knowing when to change tyres from slicks once it starts raining? Cause the engineer doesn't call me in or offer assistance. Also, how do you know whether to choose inters or wet?
If the rain is light and there's still a dry line - stick with slicks.
If the dry line is gone, but the track is just damp and there are no huge puddles - inters.
If it's raining cats and dogs and the whole track is just a single, huge puddle - wets (and look out for the red flag ).