I've been mining XMG since just before the December fork, and while I had hoped the payouts would go up sometime it's a month and a half later with no improvement.
Currently got 4 machines running at 60% and that's earning me .2 XMG per day (20¢). It's just not worth it when I can just take the money I'm burning in electricity and buy some on an exchange...
Anyway, I'll check in, because I wish you best of luck. I still think it's a great concept... just not working out for me I guess.
R.