What were you flying? I (And most other people) can easily outrun ANY NPC Cop ship. I smuggle in an Asp boosting at around 390 or a Cobra boosting around 450! It's all about getting these first 2 boost in the picosecond the Mini interdiction game ends and getting to 1.5 ahead of the Cop. After that it is easy to get right ahead of him for either the 10 sec cool down or the full 40 sec FSD cool down. Unless you are flying a slow pig, there is no rhyme or reason you cannot out run any Cop Scan!
Agreed...but add 4 pips to engines. I fly around in SC in that configuration at all times when doing these missions. Never had an NPC that would keep up with me, even though some clearly could if they tried.