I have said this before on a few threads on this site, I have a CD63SE which died (the Laser went). I subsequently went out and bought a CD6002 because of it's glowing reviews at 200 quid from Richer Sounds.
When I got home and connected it up I was disappointed with it, it is nowhere near as coherent as the CD63SE I found the treble was restrained and to much distortion with transients (Cymbal crashes and High Hats e.t.c) and it gets a bit muddled when the music gets busy.
Now, you have the KI sig version of the CD 63, I suspect you will find the difference between that and the CD6002 even more disappointing than I did?
I solved my problem by sourcing a new Laser assembly for my CD63SE, off the web from a company in Surrey, for 25 quid, I installed it in the CD63 and I'm away again, blows the CD6002 out of the water. My only regret is that I should have done that before spending 200 quid on the CD6002.
The Arcam might suit you better IMHO, it will sound warmer, but as with anything, it depends on what you partner it with..