Every pickup I've ever had with adjustable poles has ended up with the "G" pole lowered for balance. I guess because the unwound string has more steel in it. I also usually lower the "B" a little. With teles you'll sometimes hear complaints about a weak high E string. I figured the real problem was not that the E was weak, but the G and B is too strong. I had Aaron at Rumpelstilskin make a bridge pickup with a slightly lowered G and very slightly lowered B and it sounds perfectly balanced.