Snapshot, I did this exercise a few years ago. For one take-off, ask the instructor to feed in a 15 knot cross-wind, set max AUW, and to fail the into-wind outer engine at V1 plus 5 knots. You'll know it's going to go, you'll hear it wind down, but nothing will prepare you for the bootful of rudder you need to keep the aircraft straight whilst keeping it safely above the M4.
Good luck!
