The new bettinardi queen bee series golf putters the queen bee series of putters was a winner at the atampt byron nelson classic 2015 the queen bee putters combine performance and elegance coming in two designs model 6 and model 7 the difference between the two models is its shape and toe hang model 6 has a sharper edged shape and model 7 incorporates a curved back and toe hang the toe hang and shape are a personal choice for the individual putting stroke