They should add , Dungeons reward system like this for the junk mobs end speed runs.

At the end of each dungeons for the duty finder groups. Have a % completion meter and at end of each dungeon a item will random drop in a box that scroll on the screen for everyone in the party to see. and that reward given to all members of the party, Like 1-50% get chance one gil,100 bronze, or other items, 50-70% get same, but add more to the pool, at 100% complete get added to the pool a random reward u get free repair,2.5k piece, material meld item, 200 tombstone, or more, but still got the lower ones in it. Only one item will appear like a slot machine bonuse.