I don't have personal experiences, but I can illustrate a successful middling scenario. Imagine a bettor found that a basketball game had an opening line of Team A favored by 5 points. Before placing the bet, they noticed that the line moved to Team A favored by 7 points at one sportsbook while another sportsbook was still offering Team A at -5. The bettor then placed a bet on Team A at -5 and later bet on the opposing Team B at +7. When the game concluded with Team A winning by exactly 6 points, the bettor successfully hit both sides of the bet, resulting in a profit from both wagers. This highlights the importance of timing and line movement in executing a successful middling strategy.