I also meant to add on the previous post there ...stock systems are `standard`... normally freestyle ventilation, medium density and obviously come in a few different colours/shades, so you are limited in what you can achieve style-wise...they are made of the same materials [lace etc. ] and the hair is the same quality, and in many cases they are excellent fitting too, but really, for many people, the best way to get a system as near as possible to what YOU want and fitting the contours of your particular head-shape, is to make a template and specify exactly what you would like in terms of density, shade, and base - material and vitally.....ventilation. Stocks can and do `perform`and can get you out of a `fix` but usually they are a stop-gap until your custom is fabricated and delivered. Paul.