If you finished 16th on day 5 chase start with time differences accounted for, why aren't you 16th for the 5 days?
I did not do a very good job with the CS at the 2011 O Ringen - lost a # of places. Experience w/ it might help...keep those ahead in sight but also be sure to go to the correct point etc.
I had the 16th time for that day,but there were people who started before me whom I did not catch, despite running the course fastest than they did.
I only saw one person who I knew was on my course, caught him about 2/3 way along, and then he got ahead and I did not actually pass him until 50 m from the end, in the chute, which is probably why I had the fastest chute time, I started running really hard when I saw him ahead.
I tried to stay focused on the orienteering and ignore others.