I have rarely messed with LAYING,
I just have morbid fear of the payout should the animal win.
To pay out $100 for the sake of winning $5 - That means you are in fact taking 20 to 1 on about an Event.
Why would you do that?
I mean $5 doesn't even buy a decent burger , and should you fail , it will be at least 20 more wagers before you can even think about getting one.

Messing with Favourites could be an option though.
It is quite often that the Favourite is Odds On and the payout then is actually less than the collect.
The problem here is that the Favourite at such short a Price is often because heavy bettors are privvy to information that I simply do not have.
So the Question needs to be asked ," Am I absolutely sure I have this right?"
And I can never in my wildest dreams answer yes.
Until you are amongst the top 10% in your chosen Field can you have faith in your judgement.
If you just a hobby player like me , the only way to survive is to respect your Bank and treat it like the blood supply to your body.
If it runs low , limit the flow loss.
If their is a surplus, only then consider a small withdrawal.

RAVEN.
I read somewhere in your posts that you are managing an 18% ROI.
If that ain't providing enough sustenance , then I suggest you consider alterations in that sphere somehow that the 18% realizes a suitably large enough dividend to get you what you need.
You have absolutely no reason to depart into a different Field , not even to test the water , or as a backup to your working methodology.

But I have seen yoour brilliance and intelligence in action.
And if you can outdo WOOF43 and translate it into everyday understandable , then I should be asking you to enlighten me on your methods.
Although perhaps the eccentric and clinical application and personality that WOOF43 has is an essential requirement to do well in the Gambling arena.
Just being smart ain't enough - most geniusses seem to have been eccentrics.

RAVEN.
If you are truly interested in how I come up with my Markets , then here is the Link to where it all started.
http://www.propun.com.au/racing_for...ead.php?t=11591

Perhaps a good idea may be to ask one of the members that received the actual spreadsheet to post it here.
I notice Chrome Prince was amongst those members.
How about it CP?
You still have that sheet from 7 years ago?
Anyone? Anyone? Bueller?