Fullcaps have to be custom-made ...they`re not available in stocks mainly for the reasons as outlined by MattNH. My nape hair [growing] is extremely thin/wispy but it makes me feel `comfortable` to have kept that little inch or so...the system hair covers it but I reckon that if/when I incline the head down/forward, the casual observer wouldn`t see just bare skin --even with the base bonded on there, there is still some small `movement`in the system hair when the head is inclined forward/down........ I kept just a [very] few millimeters width of hair at the sideburn area behind which the system edge sits...again just for visual effect and to help it be more `forgiving`....it just helps with the illusion . Regards, Paul.