Ramuh.Laffter said:
There's no way to be efficient if you have an extremely hairy back. >__>
When god created me, I was meant to be a Gorilla at first. He started shaping me and in mid-creation He learned that earth was lacking human douchebags, so He decided to finish me up as a human instead.
Thus was I born.
True story.
No seriously, though. I'm pretty hairy and I shave myself constantly, if you get shitty disposables yeah, you're going to lose a lot.
If you use disposables from Gilette it'll go a long, long way.