Regarding the aution variant in the rules, we weren't sure whether the highest bid means:
1. Being the furthest on the scoring ladder, or
2. In a gameround, having moved the most steps on the scoring ladder.
These two might be the same at the beginning of the game, but don't have to be further in the game.
The auction is just for the 1st round, which means your 1st understanding is what we trying to do with this variation.