I have an Epiphone Les Paul 1956 Goldtop Reissue equipped with P90 pups (this is a seriously nice player!). I've done lots o' searching on line but can't find an answer anywhere - are the Epiphone P90 pickups different than Gibson P90's? If so, is the price tag of Gibson P90's going to bring a much better tone than the stock Epiphone P90's?