Am thinking 16 string half circle with 60 nodes on 2.5" centers. I need to do some more research whether it best or not to "fold" the string and use 1 ssc for 2 strings.
I used folded strings in 2012
Was no issue for all the nutcracker generated effects, BUT there were some things I wanted to do that I could not figure out how to accomplish in nutcracker so I did by hand in vixen ... Got very complicated because of the folds
I'll either go to one ssc per vertical strand, or create a program to manipulate my routines as needed for these portions, or figure out how to do what I want with nutcracker or xlights to avoid this going forward
If using smart strings in hybrid mode Then 1 ssc per vertical strand enables easier programming of simple routines as well