Has anyone heard of the system if you bet a dog bet the under. If you bet a fav then bet the over?
I don't think that's a system I think that's some shit someone just made up.
I have never heard anything of the sort nor do I see how the two would work into any type of "system".
There may be more to it like indoor/outdoor or home/away or something like that but just dog/under or fav/over I find hard to believe it any sort of system.
Actually, historically, Faves to the under and dogs to the over. Not a huge disparity but over 60% depending on how broad a sample