The mid-plus is a half-inch longer than the original Diablo, providing more leverage and pop on serves and ground strokes. You still need a long, fast stroke to hit with power, but putting the ball away is less labor intensive. The extra length also helps you retrieve more shots, though on rally balls it may take you time to adjust to the contact point, which is farther away from your body. There’s an even bigger adjustment to be made with the oversize, which is an inch longer than the original. Some playtesters who use standard-length racquets found themselves getting jammed, while others had to choke up. But for those who could handle the extra length, the oversize provided a power boost. Serve-and-volleyers will probably find the length too cumbersome at net, and control oriented players should stick with the mid-plus or even the original mid.