How to make more players succeed in coil.

[juniglee]

you know ... coil could be counted as 1 dungeon, meaning, it just 8 drops per week for raid grp/1 loot per person, oils/sands/tome could be counted into that lock out too
if you take it like that, its even less drops then the current lock out system and you would have to run it multiple times anyway if you would want to "choose" the drop you want, depending on the RNG gods

There'd be no reason to run the other turns then.

You just want weapon? Do T9 and be done with it. Tank pants? Just do T7.

Everyone is going to want different parts, and frankly this sort of system would better suit DF or PF, than to have a static for.