I don't do it. It is what is called a "Martingale system"
http://en.wikipedia.org/wiki/Martingale_(betting_system)
. Also "NEVER" lower the bet once you have raised it. $80 a game is $80 a game. Not $80 for one game and back to $20.
It happend more than 20 years ago in another Southern state. 9 Ball ,race to 9 for ---
I lost two sets in a row. I asked for doubling the bet. He agreed . I beat him and got my money back. He wanted to play another set and wanted to double the bet. I said no for doubling the bet further. I said that I want to lower the bet to the original amount. He said that he never heard of such thing and it was not a tradtion in pool gambling to lower the bet once it was doubled. I said that I don`t follow those traditions or rules and I follow my own rules and it is: Anything and everything has to be agreed upon by two gentleman before the start of each set. He got pissed off. He was 6 Feet and 4 inches tall and weighed 275 lbs and served a short sentence in the prison and I was not intimidated by those stats. I don`t get intimidated by anything and I follow my rules and traditions. Take it or leave it.