Please just adjust the fee to 0.5 or 1%, it is fine and we don't really mind as long as the pool is stable, the issues are resolved in time and/or the losses are reimbursed by the owner's fee. Note that as the userbase grows, you will encounter very serious performance issues and probably will get regular DDOS attacks. You need the fee, but just don't do any hidden fees, we all know the zpool's reputation.

Keep adding the fresh neoscrypt coins, perhaps drop the unprofitable ones after a week or so, and you'll be set.
I'm mining on your pool and it seems good so far. Getting higher profit compared to ahash and refinery.