Strings and n-for-m

I missed one Friday exercise on the 17th.  I missed two in the week of the 20th (Wednesday and Friday).  Not really a surprise, as this is the very busiest time of the semester at work.  Still a better performance than last semester.  Overall, I believe I am 54-for-58 on workday chances since February 9th.  Another way to put it, in the 11 1/2 weeks since 2/9, 9 were 5-for-5.