I'm not sure about that one oldtimers.

This morning, before I saw your post, I went through the stats for all 12 days of the "system" to see if I could figure out what was going wrong. Now, I know, 12 days is stuff all and I've had systems before where they just turn around mid-stream even though it has been going well (kinda like this one I suppose), but I thought I'd look into it to see if I can make it fit (even though it will again probably turn around and go AWOL).

I came up with the following;
The total ongoing loss (not stopping) for backing both the 1st and 2nd faves when they were within 3% winning chance was -153.35.

I looked at just the 1st fave when the normal rules were met +114.09 (with 5% commission deducted). MMmmm.
I looked at just the 2nd fave when the normal rules were met -218.50 (with 5% commission deducted). MMMMMMmmm.

What if I use the same conditions and instead of backing them both I back the 1st fave and LAY the 2nd fave. Although I haven't got the lay figures if I take off 20% of the back price which I think is probably too much for the 2nd fave (with 5% commission already deducted) I end up with +174.80.

Sssoooo, when all conditions are met;
Backing the 1st fave & laying the 2nd fav would of produced;
+288.89 profit (using $5 level stakes on both back and lay bets over the 12 day period).

As I said previously, I have NO idea if this will work long term. I was trying a system for nearly 3 months that seemed to go alright at the start but just turned around and gave back any gains so, for sure, that's what's probably going to happen here as I can't see the 2nd fave losing, as much as it's done in this testing period, throughout the year.

Talk about manipulating the stats to suit my own purposes.

I'll give it a go today and see what happens using the exact same rules as originally posted (Gallops, Harness & Greyhounds, provided the 3% rule and the max $4.50 for the 1st fave is used) and betting all day and night (no stops at this stage) but of course backing the 1st fave and laying the 2nd fave. What could possibly go wrong?