The pic that a member posted of a razor's edge after 50 laps of stropping, then after another 50 laps on the strop, for a total of 100, and the difference between the two edges was really revealing. Like night and day.
After I saw that, I now do 100 laps on the strop before each shave. Very compelling photographic evidence of how important, as Jimbo states, proper stropping is.