I find it helps analysis. Its also really convenient; once you claim splits the race appears in your log (and you appear on the race page). So you can keep track. I like to check what other peoples race day was like by going to the race page and seeing who has logged. For instance Craney lost time at no. 4 in the WMOC final, but so did others who logged that control/area and commented about it.
For a more personal example in the Long M60 WMOC qualification 1 (https://www.attackpoint.org/racesplits.jsp/race_24...
) you made mistakes at 2, 3 and 4; then another sequence of 3 at 8, 9, 10. Otherwise the AP calculator reckons you were clean. Is that a pattern? Do you tend to follow one mistake with another?
I actually thought that "Invisible Log" meant you actively didn't want to see races in your log or vice versa.
Getting the splits to show up in your log is by clicking the question mark next to your name and entering your SI number - AP remembers the number for future races.
And its free.