I have a night tournament this weekend, at a lake I dont fish too often.  I have had some success at this lake drop shotting some humps.  Lake is crystal clear.  I have never tried drop shotting at night.  Is it effective after the sun goes down?

i would focus on speed cranking the shallows were there is some nice points and drop offs near by. Remember its summer time sun goes down the bass start getting active. if you get no luck cranking then take a shot and drop shotting. or you could always FLICK SHAKE.