As most of you know I,m a multi-bettor but if I was betting 1 horse a race I would consider getting an asessed price market -( Don Scott or Daily wizard online being the best) and Only bet the horse if I could get their asessed price or better.
Some professionals only bet if they can double the asessed price
Why? A very professional punter has looked closely at the particular race.
and it only takes a minute or so to check.

I,d be somewhat concerned with the tip if they had it asessed 20/1 - 100/1

Cheers
darky