Hi guys, forgot to check back to the forum.
These are Customs Yamaha ones to fit, I swear I seen somebody somewhere on the tin'net had replaced them with two single screw ones as whats installed.
Ive had a small look around for the bridge to be rewound to give higher quality sound even though its matched to the neck pickup (that is more like a P bass sound) I would like some more ooomph from the bridge overall.
Sadly I am not a fan of Fender Jazz's unless its a full blown USA model, and I've had this Yammy for 10 years and this baby aint going!