Add levels to collectors, mines, drills
My suggestions for saving loot after the update:
1. Add level 13 collectors, mines, and a third DE drill to TH9
2. Add a fourth DE drill to TH10 or 11 and add level 7 to those drills.
I think this could balance out saving loot after farming was eliminated from the game. Being able to collect more now that raiding has increased the amount taken can help upgrading. The game can't be played the way Supercell thinks it should be played when upgrading has become to hard, in my opinion. I think upgrading becomes too difficult at the TH9 level, especially after the update.