After researching the net, i found that in order to measure neck relief in electric guitars, you put a capo in the first fret, then fret the fifteenth fret which is the part that the neck enters the body, and measure the neck relief with filler gauge at 7th-8th-9th fret. But what about our SGs? Mine is a 2013 standard and the neck enters the body at the 22nd fret. At which fret do you fret, and at which fret do you measure neck relief?? HELP NEEDED!!!