And if this is the esiest way to spread gh/s around for the sake of using those <20 coins, would 1.5% or even 2% fee cover your expenses, to run 2-3 more clusters?
The problem is throwing too much hashing power at the small coins. Adding more clusters will throw more hashing power and overwhelm it. A better option is being able to somehow fine tune how large the cluster is that is thrown at it.