The crossfire---I'm surprised you haven't heard of it before---is a beautiful and lethal move that works only with the sidearm delivery, as I said earlier. It's been around for at least several decades, and the first I heard of it was when Cincinnati pitcher Ewell Blackwell was using it a lot. Now a number of other sidewinders have picked it up and are using it. Here's how it works: You're a southpaw, right? Okay. So you go into the windup, or the stretch, or the no-windup that Don Larsen used when he pitched his perfect game---but instead of pitching directly to the plate, you take a step or two towards first base, whip around with your whole body and fire the ball into the plate from that angle. To the batter it looks as if the pitch is coming at him from first base, and he gets all flummoxed and discombooberated and tries to get out of the way only to have it clip the corner for a nice neat strike. I was a righthander, so I went by way of third base---same result, the batter was caught off guard and ended up striking out. The beauty part is that no matter what the batters try to do, that move is going to get them. And it will work with any pitch---even that obstreperous knuckler. The slider is especially lethal when used with that crossfire. Have fun with it, and lots of K's.