Same here, when I was trying to track it, the autoswitch returned less. ALot also had to deal with market prices of the alts as well.... it just wasn't as effective as I'd hoped. So i just stuck to 1 currency.
Anyone have a few Z9/minis so they could run MPH-autoswitch vs. something like Prohashing for 48h, at the same time? I've tried to alternate pools... but small differences in pricing on different days always throw things off: it would be best to have 2+ Z9's in parallel to get comparable numbers.
You're not going to get an accurate number, there's variation in each machine that will throw off results. I will say that MPH with auto-conversion has exceeded whattomine highest daily income estimates (of any coin) for me for the past 4-5 days. As with all things, ymmv (and the value of BTC of course plays into the math as well), but I'm overall doing better at this point using it than staying with one coin.