A few things...
1.) Rare to find Kelly shifts here, most operate 3 12's per week, in variating patterns and rotations, some being 7 days on, 7 days off, to Th, F, Sa, Mo, Tu, W....whatever.
2.) Someone please define "testalogical"
3.) I now see the 10 shifts reference. The standard being 3/12 hr, leaves us with 14/month average
-P