What kind of coilover setup for the 1/4mile?

I'm just wondering what kind of setup you guys run when 1/4mile racing?
ie. stiffest setting, lowest ride height, low front, high rear, etc.....

Also, I know that when adjusting the height of coilovers you should get an alignment afterwards, but is it possible with coilovers to drop the car for a show or race, then afterwards raise the car back to your normal driving height, without affecting the alignment??
Thanks