Just never did OI. I think that OI's destabilize the tactic.
Completely agree with above.
1st Season I used OI's and finished about 7th or 8th with Farnborogh
2nd Season using the same squad I came 1st without using OI's.
Perhaps I was using the wrong instructions having a poor Assistant Manager but tactic does seem to do a lot better without OI's in my experiences.