Are you using early PCA's or later PCA's, Jed M? I have a mix of both, but the set of 0.5 meter cables running from my S1500 to the 990 for DVD-Audio and SACD are from after they changed the locking connectors to use ones with a smaller outer diameter - they're still a snug fit on the rear of the 990, but not any worse than my TMC Yellow Labels, and certainly a bit better than they were on the back of the 950 (where they rubbed a bit). I think they made that change around late 2002.