This is what I do.I trim my sides and back every 3-4 weeks using this philips

http://www.amazon.com/Philips-Norelco-Qc...r+clippers

Another option (if you wanna grow your sides and back out) is to have a second piece with longer hair and switch to that when the time comes.Lastly it's possible to have the crown area looking thin with a custom order.Just put that in the special instructions box.