Not everyone will agree with the method, but if you're careful, it worked for me, when I left approx 3-4" outer skin lip. Probably helped that I was using one of those low HP cheapie electrics that were easier to control. (The one I bought just for this purpose was a Walmart $39 toss-away, but it lasted well, in spite of needing sharpening a couple times because of the staples, etc...)
Good Luck
