My 2 cents as well,
Displacing the stick until spoiler deployment, then backing off a bit to stow them, I agree on that one. Proper technique for any airplane with roll spoilers. I've been doing and teaching it for quite some time and most pilots seem to like the idea. Aileron input is brought to zero just prior to rotation, or into the rotation, to make sure it's totally removed when the airplane gets airborne.
The whole idea is to have min drag at lift off, ie spoilers fully stowed and ailerons neutral. Not to be neglected with an engine out, specially when using V2 min (1.2 of stalling speed) instead of V2 optimum. Don't need any unwanted drag at that point, that's for sure.
But on the other hand, an airplane like the B-757 with no roll spoilers, the technique is quite different. More wind, more ailerons into the wind until it feels appropriate. As well, in this case the aileron input will normally be kept into the wind a bit longer during rotation.
Roll spoilers or not, the airplane should get airborne wings level as much as possible and letting the rudder go to neutral during rotation will provide the proper crab to keep centerline. Don't fight it at that point, everything neutral more or less, should do it.
Cheers!!!