ibanex

Hi I am trying to work out the serial number on this EX360, it is P903529 on a sticker on the back of the head. From what I can see this is a Peerless Serial number fro 1990 but a lot of sites say Peerless built from 1987 to 1988. Any help appreciated. It also has a tremolo bridge I can't...

I've been looking into getting a 7 string prestige or j custom, and a lot of them have Edge Zero bridges. I usually don't like knife-edge bridges, but i love the ZR trem on my s prestige. In case i don't like the edge zero, can i swap it for a ZR without doing extra routing, or are they too...