I am keen to try drop shotting ( as I am a bass angler at heart

).I have the right rod and tackle ( jig head and plastics )
What areas would you target with a drop shot rig? open beaches or rocky areas? Ive seen a couple of guys ( on FB ) who have caught cob on drop from winkle and illovo ..... one being a rocky area and the other flat with no rocks.
How far do you cast? and what action do you use?
thank you