For release purposes, I utilize a unit rating system as follows: 1.0, 1.5 and 2.0 with 2.0 being the strongest and the most rare. Majority of the plays will be 1.0 or 1.5 unit plays. For me personally I am quite conservative and a 1.0 unit play represents .5% bankroll, 1.5 unit play represents 1% bankroll and 2.0 unit play represents 1.5% bankroll. I would suggest never exceeding 3% of bankroll on a play. Any play that doesn’t specify a unit of 1.5 or 2.0 should be considered one unit.