You`re welcome.... some nice styles there.... the first pic there has the front hair standing up---that will expose the hairline so you`d need to be mindful of that....the style in pic 2 would be more forgiving/ a little easier to `work`with ...it`s a nice casual, slightly `wild`look... if you are going for the exposed front, you`re probably better having the front done in Swiss, just as it`s less visible . Your back hair will mostly be covered by the system hair anyway so you won`t have to worry too much about color-blending..it`s handy to have it there though just to `soften`the visual effect for a person casually glancing at the back of your head if you were to incline the head forward and down as I said...it`s far less noticeable with a little growing hair `tight`in against the skin there........ bye for now... Paul.