I'm still trying to grasp with why you would want to do this in the first place. I've flown the B1900 in Alaska, but not on ice. I've also landed the aircraft at its maximum certified crosswind, in the sim and in the actual aircraft.

I do not see how pulling the upwind engine first (which would increase your yaw into the wind, thus increasing your crab) helps you? You are pulling the critical engine.

If someone wants to show me a force vector diagram so I can understand the technique, I would appreciate it.