You sound like me after building my first CC... I'm happy with #3.
+1 to #1. The issue is "baffle step compensation" or BSC, specifically its presence when not required. When designing a free-standing loudspeaker for flat frequency response, the designer is faced with a fundamental problem; highs are louder due to sound reflected from the baffle, while lows receive no such augmentation. BSC pulls down midrange and treble levels to match the free-standing response of the woofer when located well away from walls and other reflective surfaces.
If your CC was designed as a free-standing speaker, it will be boomy in your application. My first CC had BSC, my second was identical, but with an on-wall crossover circuit, and no boomy bass.
As to Will's other comments, it's all in the compromises you make. Ear height is optimum, but I've no issues with my CC below the TV because it's got good off-axis response. Matching your mains is a good thing, but 3 identical speakers will sound different unless they're placed the same relative to boundaries. The BSC discussion applies; a free-standing, high BSC design will sound boomy if mounted near boundaries.
One compromise I would not suggest is phantom CC. Those who suggest it must be hearing something I don't, as it just don't work for HT. You want to localize the CC dialog, not spread it out. The right CC for a given application is frequently not the same as it's L/R partners.