To the OP:
Your loot system can work and has in the past.
This is assuming you know what's best for the raid and that the other 9-24 members also trust you to do the right thing as far as what is best for the raid.
So, being a "Loot God" or however you like to put it is not necessarily bad, but it can go south quickly.
This is mainly due to people.
People get greedy.
People create expectations, especially on certain loot drops.
Without some kind of guild loot system, whether DKP or loot council with officers or whatever, things can turn on you and people will leave over it.
The only thing I can recommend is to be fair, be unbiased, and accept opinions of everyone involved even though you make the final decision.
Think of it this way: You may be guild leader, but if all 9-24 get upset, what's to stop them from gquitting and making their own guild, leaving you left out in the cold?