Greetings,
It is my understanding that the max level chest is 40 at the moment.
I believe the current best you can do would be:
LE raid = 34
Ship +1
Jewel +2
Blesser +1
Pirate Map +1
Loot bonus weekend +2
Thats a total of 40 though the pirate map is not really sustainable so more like a sustainable max of 40.
During anything but a loot weekend its 38.
If you dont like farming LE raids for random loot its either LE quests or LH raids for 37.
If you go with LN raids, LH quests or U27/U28 EE quests you are down to 36.
Would the above be correct or am I missing something?