Try riding it with the saddle as far back as it goes and maybe a shorter stem. Handling might improve. If you don't like the ride it's just another old bike. But switch up this and that and hope for the best before you let it go. If nothing else you got a bucket of nice parts out of the deal. The idea of the extra curve on the QR was you could snug them all the way against the fork or stay and there would be nothing to snag when riding at very close quarters on the track. Race officials were not impressed with that idea, very few were ever raced, Campy gave up on the notion, and now we have some oddball parts still floating around.