im keen on the idea of equiping my sg with a "Seymour Duncan APH-1" pickup at the neck. but im confused.. can you simply place one of these pickups at the desired position?? or are there bridge and neck versions?

also what pickup would make a good partner for it at the bridge? in theory id like to have a slash like sound on the neck... and somthing with a bit more metal style power on the bridge... a difficult combo for one guitar id imagine?