I have played one campaign to the silver level (as an OL). I also have played a few sessions as a hero. On the basis of this relatively modest RtL experience it seems to me that blitzing is a must for most hero teams. Yet, I dislike blitzing (even as a hero) - the game was not meant to be played this way
So I came up with an idea for a rule that is supposed to discourage blitzing:
First level: heroes get 200 gold from treasure piles and roll three dice for chest contents. Second level: heroes get 400 gold from treasure piles and roll four dice for chest contents. Third level: heroes get 600 gold from treasure piles and roll five dice for chest contents.
What do you think? Would it work? What would be appropriate counter for advantage that this rule gives to OL? I was thinking of scaling the threat "income" so that OL receives 3 threat per turn in copper, 4 in silver and 5 in gold. (The income would be the same for all levels of a dungeon. It seems to me that any rule that gives OL less threat on the first level and progressively more on next levels would encourage blitzing)