I have a 2008 SG Special Faded which still has the stock 490t/490r pickups. They are ok but I'd like to upgrade them. What are the best Gibson pickups for a SG? Ideally I just want classic SG tones out of the guitar, think Angus, Iommi etc. Being able to do some heavier music well like Metallica would be good, the stock pickups sound a bit too open for that.