A FEW WORDS......
There was a cover last night on the 13th play of a parlay combination. This is a good example for the reason of reducing the unit size from one unit to one-fourth unit. It gives an additional 4 steps in the progression to make a cover although we are increasing the number of parlays from one to four.
The full unit progression has only 12 steps compared to 16 steps with the one - fourth unit. The results...... a win instead of a loss.