I'm guessing you mean for FS, i'd probably argue the 105-110 range would be solid, my pro level FS has survived with 100 sneaking up to 105 the past two seasons and has been top 5 both seasons but i'd occasionally like a pinch more on the odd play or two.
depends on the system your in, if the SS is used like a LB, covering HBs and TEs....then right around 100 will do, if you're playing zone and have to cover WR1 or WR2, then yeah, 110 should be the goal...