I have not bet outside numbers for a very long time. However when I did bet them I did so with different colour pens. So that any sequence, A streak or a chop could be seen at a glance.
It was my impression at that time that Chops were not as frequent as streaks. Nor did they seem to last as long.
I swear to this, but I have personally experienced streaks of up to 20. Chops rarely seemed to go past 12 or 13 spins.
Reyth, you could possibly confirm this with your computer trials.