Thanks for the reply Paul.
I have checked out your other posts already. You atually have about the same hairsytle as me too, though i think with a full cap i will go a bit longer.. maybe about 3 inches on top, and 1-1.5 inches around the sides and back.. i assume having that bit of length will help conceal the edges of the piece? Not to mention i have always wanted longer hair but never been able to.

Like you, i will be leaving a bit of my real hair at the bottom part of the back of my head and a little at the sideburns, just to make the transition less harsh.

Can't wait to get my first piece.. Well two. i will order two at once the first time so i always have a spare piece.. nothing worse than only having one usable piece at a time.. even if just for the peace of mind of knowing that if it gets damaged or something, there's always another one waiting and ready to go.