Hey Autumn Lotus,
There is the idea put forward by Danny Holmes on how to bet your top three choices:
the thread is:
http://www.paceadvantage.com/forum/s...ad.php?t=50961
and I think his book is here, but is also linked in the thread:
http://www.paceadvantage.com/forum/a...7&d=1222428231
My advice would be to keep records on your first, second and third choices as well as their odds and then see empirically what shows a profit.
For example, if you bet the two longest odds horses of your three choices, does that show a profit? If you have the results recorded, you can answer that.
Best of luck,