OK, I got about 8 hrs on the WE14s yesterday. The roughness in the treble is gone as is the nasal tonality. Even during this brief burn in, the musicality of these cables (I'm talking PRAT now) manifested itself. They are very smooth and grain free. I was VERY pleased with what I heard last night before I shut things down. I'm finding that the foundation pieces of this system, e.g., the Coincident dynamo, the WEs, and the Coincident Triumph Extreme IIs, to be a killer combo. I've got about 4.6K in those pieces. Crazy good for that much money! Since this will serve not only for living room music, but also see service as a two channel AV system, I'm thinking this would finish out very nicely with a ModWright Oppo 105.
Al identified the probable cause of the initial awful sound. Count me a WE 14 believer at this point.