I have personally undergone both DHI and regular FUE procedures, and in my experience, DHI did allow for denser packing compared to regular FUE. However, it's important to note that the density achieved also depends on various factors like the quality of your donor hair, the expertise of the surgeon, and your scalp's condition.
While DHI may come at a higher cost and longer procedure time, the results can be quite promising in terms of achieving a natural-looking and dense hairline. Just make sure to thoroughly research and consult with reputable clinics to ensure you're making the best decision for your specific hair transplant needs.