[Part 3 of 3]

Here is a solution: eliminate all rewards in first clears (short of re-working the absurd chest system altogether, this helps make it work) and implement a raid condition roulette instead of Duty Complete >> Practice. A person with a clear would be rewarded handsomely in proportion to how many people without clears they end up being placed with (and in particular, the reward would have to be strictly better than existing raid rewards), incentivizing new clears offset by the time taken for new people to learn the material.