Yes zroostr, I have remapped all my buttons so I cant use specific buttons,
After your doors open and speed stabilized, and you click on the target on the map to set your target alt,
in calibration mode, take the crosshairs straight ahed. It is not critical what point you focus on, but I go about halfway between my planes and the target. use your stick to keep the crosshairs on a point as steady as posssible. Your crosshairs should appear to be motionless with respect to the ground. Press the calibration button .Keep the motioneless crosshairs focused for as long as you can, but dont let the crosshairs pass under your planes. If you get alot of herky jerky stuff, you can redo it. Exit calibration mode and start again. It take practice and patience. Once your satisfied with the motionlessness of the crosshairs, release the calibration button. But dont move the joystick until the button is released. Im not sure but I thinl the last cupple seconds of calibraton are critical. Now you are ready to drop.
The whole key here is consistancy. I am consistantly short with my drops, so I aim long. If I set my crosshairs on the edge of a city, usually 2 bombs hit before the city, sometimes 1, sometimes i am right on the money, but I am never long anymore. Thats the whole key. keep your routine consistant, and you will become consistant. Then you can start to fine tune.
Hint. If you are going for a base near the coast, waste one bomb on the shoprline (if you have enuff time to see your bombs hit before you pass over the target) to check if you are long or short. If you see you are long, you can adjust your drop to compensate and similarly if you are short.