Dario.... I concur with Hersute regarding the length...... the shorter you cut /style a system, the less ` forgiving` it can be ...you can end up with a ` stubble` look... I know you`re probably anxious to get going with wearing, now that you have a system to hand, but I`d leave your own hair grow out a bit more,even if it takes that bit more time ...it`ll make blending-in easier.......without seeing pics of your own hair [when it grows] and the system, it`s hard to give any tips/advice on whether or not you may have to thin the system a little..... what density did you buy ?