I will explain it. First, it is NOT a wagering selection system and second, I do use it successfully when I am winning on a pretty constant rhythm.
It helps me (me, as in I) stop from the continual throwing in of the win money with or without additional units from my B.R., if I follow it.
In sequences of 4 if I was winning, I would follow it. If not, I stick to risking my 1 and 2 units. Here is the way I would use it.
Let's say I was wagering $100.00 to start. 1 unit @ $100.00. I would wager from my B.R. the $100.00. If I won I would parlay the winning and risk an additional $100.00. Second wager is $300.00. If I won, I put $400.00 back into my B.R., $200 original returned and $200 win money. My third wager is $200.00 from the second wager win also. Now I play on the casino. If lose the 3rd wager, back to 1 unit/$100. I have 2 tries to take off again on the casino, because I still have the $200.00 in my bankroll from them. If I win the 3rd wager, I go to the 4th, which would be $600 in this case. On the 4th wager I have to grab that $200.00/2 units I put into my B.R. from the 2 win wager to make the 6 units on the fourth. If win the 4th, I am now sitting with $1,200.00 win money. If I lose the 4th like I said, I still have the $200.00 I originally risked to try one unit, twice to build back up.
Hopefully I explained that right.