Hi Katymac if it helps I found a really good site online that had a manager package, it was a site a bit like noble minder, but some parts of it were free the staff rota system was fab, worked out ratios according to which mindees you have at any given time. I would definately use it if I ever get myself sorted out. Congrats on your new reg btw.
Agree I think its going to be a bit fiddly, with dual reg. Basically from what I looked at you can be either one or the other at any given time. Obv CM is as per usual, but the CM on DomP is going to be a bit odd till you get used to it, kind of same rules as nursery WRT ratios and 2 people at all times first aider on/off site etc.
I would look to see which days will work as which reg then do rotas for individual days, as I doubt a pre- made scheduler would work with the different staff combos on this one.
Sounds well complex but common sense would dictate that if you had 2 in the 1:4 and 2 in 1:8 then you would have 1 staff member for all, however personally I think if you had more than 4 of either combinaion I would split up and have 2 staff, this is what generally happens in the very few nurseries I have been in, whether its the ofsted approved way I have no idea.
I think working out break evens is going to be a nightmare. WRT assistants picking up I have no idea, this is something I'm struggling with ATM too.