Never could get the timing right on the jump, so started doing this:
After frobbing the switch, strafe left/right until you hit the wall, and then strafe back towards the center.
That way you're sure that the hole will be there to fall through.
(Simpler way is to frob, see which side of the floor has caught you, and then strafe towards center immediately. This, however, doesn't always work ... )
|