Picture the same set of inputs, but a set of outputs all denominated in 30BTC, 10BTC, 3BTC, 0.1BTC, O.03BTC, etc.
I like the idea of using powers of 2 as the change amounts. That way any amount can be created by using at most one of each size of change.
WRONG plan!
You want at least ten outputs of each denomination you're creating.
The whole idea of standardizing denominations is for txOuts to be indistinguishable. The only one of a given denomination created in a transaction is VERY distinguishable from all other outputs.
At most one of each size goes to each participant. Each output goes to a different address.