This hand is perfect for the constructive overcall system which I play with one of my regular partners. It's legal in the ACBL General Convention Chart and is used at any vulnerability provided that the length requirements are met. Over 1 of a Major: 3 of a minor shows THAT minor and the OTHER major with at least 5/5 distribution. Partner passes or corrects unless he has enough to force to game. As always caution is used. I've never exercised this on less than 5/5 and with 5/5 i'm careful about values.