I now start mine off in small trade pots. 2.3 liter to one gallon size, with anywhere from 30-50% pearlite (depends on what I have on hand) , a bunch of compost, and sometimes a little potting soil. If it's humid (which it is at this time of year), I put them outside under one of my in ground trees, if not, under a humidity dome, either in the garage, in the house, out on the porch, or, again, under one of my other trees. Depends on humidity and outside temperatures, which can sometimes be extreme here in Arizona. I now prefer to use green cuttings, because with green cuttings, I know in a couple of weeks if they will survive or not.
I don't lose any trying to transfer from cups, because I no longer use cups, except as humidity domes. (I am too clumsy and inept to root in cups). This method saves a me lot of time and effort babying and then transferring what may appear to be a viable cutting only to have it die later.
Anything that isn't making it goes into the compost heap. With dormant cuttings, those relegated to the compost heap would occasionally make a comeback. With green cuttings...nada.