Crash,

In your post you talk about stopping after one losing bet, this was never mentioned, you talk about basically all bets being evens or odds on, these are YOUR assumptions only, then you go into betting a place, your assumptions and never mentioned.
Then you say the profit is the bit and not the 1 unit plus a bit.

Lets go through a little scenario and see if you can get your head around it.
We start betting for the day and we have 3 loses so we are minus 3 ( do you agree with that )
We then get 2.8 winner so we have had 4 bets less 2.8 so we are now minus 1.2.
We have 2 more losing bets so we are now minus 3.2.
We have a winner at 2.9 so we are now minus1.3.
We have a winner at 2.0 so we are now minus .3
WE have 2 loses so we are now minus 2.3.
We have a winner 3.3 so we are now square.
WE have a lose so we are now minus 1
We have a winner 3.0 so we are now plus 1 stop for the day.

Of the 29 days 14 of them have been a 1 bet day as per today at $4.2
Another 10 days have been 7 bets or less.
The other days have been horrors but only lost on 2 of them.

Hope this explains.