Barbara, I would like to get new steps on a regular predictable time. For what it is worth, I feel once a month is too long! My guild does that and I often forget and forget if I don't do that step right away. Once a week may be too much for you the creator and I know not everyone is free to quilt every day. But, honestly if once a month or once every couple of weeks works for you, then I will be a happy quilter.
I just joined another mystery using 2.5's and I actually ran out of the little darlings. But never fear. I had plenty of scraps to cut up to make a blue mystery. That mystery sends out directions twice a week so I will be busy, busy, busy! That make three mystery quilts in progress. This year has been a mystery. So, why not?