The characters were constructed using a 10pt buy, with no bonus points for ability scores below 10. (So no min-maxing in that sense.)
I'm using the slow XP advancement, which has put them a little over a level behind through most of the AP. But the extra XP they get from the higher CR builds that appear in the updated stats document have almost caught them up to the levels the AP recommends.
I don't allow magic item crafting, and I don't allow them to buy magic items whose cost is greater than the Base Value of the biggest settlement they have access too. (As of the Midnight Isles, that's 32,000gp.)
If with these obstacles they still destroy everything, I fear my guys (who work with other restrictions) will do even more. Good to know.
I misread the spell. I thought it was 10 cubic feet per level.
Well, they still can stoneshape a door out of its frame, I guess. ^^