Well i tried wrapping the strings around the stop-tail but lose abit of bite. I have a friend who was doing demo for Gibson during WOMAD (a music festival). There is a whole line of Gibon from Slash LP custom-shop, ES335 to SG 61RI. All guitars were prof. set-up so that people can have a go at the guitar. My friend was lucky enough to have those babies with him. He noticed that all the stop-tail from each type of guitar was differently set-up. He noticed among the LP, ES335 and SG, the SG stop-tail was set the highest. I believe this is due to the flat body of an SG and the neck angle. :)
Technically, there are folks that say the break angle from bridge to tailpiece should be the same as over the nut.