Hall of Famer Norm Duke averaged 264 to lead the Florida Blue Medicare PBA50 National Championship after Monday’s first round, according to results posted here. Duke totaled 1,584 for six games on the burn squad on the Billy Hardwick 44 lane pattern at Spanish Springs Lanes in The Villages, Florida.  “When you have to focus on making the best shot of your life, you’re going to benefit from that no matter what the condition,” Duke said in this PBA news release....