The Oppo has a superior laser because it is also blu-ray. Get an Oppo, even used and a Synchro-Mesh reclocker and you have a world-class transport:
http://www.audiocircle.com/index.php?topic=154408.0
Older transports often have only one laser. You need three to get good tracking and reads. Also, C3 correction is a plus for scratched disks. Some newer transports will have this.
Steve N.
Empirical Audio