hi all, as a very novice giutar player i have been instructed to play standing up by my teacher, and so have attatched a strap to my guitar. i have drilled a hole in the bit where the guitar neck joins the body (sorry dont know the correct name..) and have the srtap on there as my teachers guitar. problem is i am finding the strap is tending to dig into my neck. Where else could i attach the strap for better comfort, and where is it safe to drill without damaging the (acoustic) guitar?