Also, I actually think there is more variance than is visible on that table because there are some very big payoffs on some of these coins that it is hard for a small pool to hit (but it will eventually/occasionally hit them, or it will hit them more if it gets bigger).
Yep, just because I'm staring at it all day, this is definitely the case. I'll watch the btc/day slowly decaying over 6-12 hours (down to like 0.011) and then spike up to 0.018 or something, and back into a slow decay. Just a matter of mining high difficulty coins. I'm sure we'll have some really unlucky days, and I'm sure we'll have some really lucky days until we get larger. Just part of the growing process
You could switch it on and off when someone is available to manually trade them. Better than nothing.
Switching the coins on/off wouldn't be needed, they'd be available to be mined all the time. Its just that trades would be less frequent (so there is some price risk with holding for 12 hours or something). Again, definitely not something I'm against, just something thats taken a bit of a back burner for now (so much stuff on the plate, adding something where its just one more required thing to do every so often, isn't an thrilling idea)
On that note, as a quick update for you guys, I'm actively in the process of syncing up a few more endpoints for stratum servers. Ideally sometime this weekend we'll have them up and running. Plan is to have a US East, US West, and EU (Netherlands) endpoint available. No geo-loadbalancing to being with (you'll have to manually set your preferred endpoint), but should drop latency a bit, and add a few failover pool locations in case we have to do rolling maintenance in the future.