I read your progression wrong. Sorry about that. But I can try to explain how I play it:
I always want to stay on level 1. So if on a new high of bankroll I switch back to level 1.
After a loss I increase with +1
After a win I bet the same again and decreases after a win.
An example:
1-1 Win
1-1 Win
1-1 Win
1-1 Lose
2-2 Win
2-2 Win
1-1 Win
etc
What do you think about that?
Its good untill you go to say 5-5 win, rebet 5-5 win, drop to ?, 1-1 would be okay but will take a long time to get those lost raised bets. Look in dont knock it till you try it.