Follow-up to "back o' the envelope" Nov 7, 2015 21:07:03 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by Admin on Nov 7, 2015 21:07:03 GMT -5 I did a curve fit (sigmoid) with "1" being Q315, "4" is Q216, and "8" is Q217. As you can see, even the real data fits the s-curve pretty well.