Snipe is probably the best to advise you on the way to proceed with this...however from what you describe, it sounds to me as though Fullcap would be a far simpler solution to your difficulties..... sounds as if you`ve reached the end of the line as far as blending -in even a very light density system onto your own sparse hair --nothing worse than being `conscious` of it on your head...I can assure you as a new wearer of Fullcaps, this is no more of a difficulty than wearing a topper.... I had read a lot of things which made me wary of it but in truth, once you nail the temple/sideburn area with your template and get the ventilation correct, a decent cut-in will open a new lease of life for you...worth considering. Paul.