Again thank you for your reply, but I don't think we get each other. I know that to achieve natural result you have to put two rows of single grafts first in the harline. Then double grafts and so on. I understand that. My thinking is, we take 4000 grafts and make them into 3000 grafts. I know that 3000 hairs will always be 3000 hairs, but grafts can be fused and sliced from what i know. You can take Double graft and make it into two single grafts. You can take two double grafts and make them into 4 graft follicle unit. So in theory if we took 4000 grafts, and fused them into 3000 grafts we could realistically achieve better density results, beacue the number of hair would be the same with both 4000 units and 3000 units, but you could transplant those 3000 units to a smalles area with safe 60 follicular units per square cm. I'm not trying to argue you, as your knowladge is much better than mine, but it's a question if it could be done. Thanks.