When you have the LEAD at halftime, I believe in many cases, it is a mistake betting the other side and trying to middle. What gamblers fail to remember is all the times you are behind at the half, but you can't possibly put yourself in a POLISH middle situation and you LOSE those btes the majority of the time. So WHY give up an advantage that one has by betting what usually is only a 50-50 proposition to win your second half wager?