I don't play  F/B pairs on the pick 3 but if you do or want to try here is a trick that works once in awhile. 

Go  back 30 days and take the numbers and play them as pairs exp. Today is the 6th so if you would have played the pick 3 for march 6th (in PA)you would have won today as it was 0-9-1 and 3-0-6  today's drawing was 309 and 300. I wish it was like that everyday but it's not however they normally come in within 10 days.