The main focus of every system that I have developed (and subsequently abandoned) was always one single bet.

For pick 3/4/5 just one play each

For Mega Millions and Match 6, just one line

Power ball in PA presents a unique case. My pick for the PB is based only on the dataset of results for the current matrix. PA also offers Double Play. I pick that line based solely on the double draw results dataset. BUT... you can't just enter the double draw, you need to enter the main draw and pay an extra $1 to get in the double draw.

Therefore power ball is my only exception to the "one line per game" goal I have set. Though technically it is one line per game, the requirement is to play for both games.