In order to get the full coverage result for Norwood 6 , you need min of 9000 grafts . Anything less than that won’t give an illusion of full coverage unless your hair characteristic needs to be excellent and you need to have a lot of triple and quadruple in donar area . Also sounds like , you have a lot of native hair in your crown, if you respond very well to minoxidil and finasteride , and other necessary supplements and vitamins , using proper treatment like Low laser therapy , PRP , Messo therapy . You might be able to get them thicker .