I can speak to your last point:
NOPE!!!! I think it would look cool....
The innards of the CS4s are exactly the same as the "chrome surround" CHIs...so I would think they would sound alike....I have not played them myself...
Thanks, D... And everyone else... frump-a-licious' was just the last reply...
PBG had a ice blue metallic USA Joe Osborne w/ narrow chi's and the stack knob control lay out that called my name... loudly and repeatedly... alas, someone had more $$$ than I did at the time and it went home with him, but I STILL remember how that bass sounded and felt...
I fall into the modern=scooped with sizzling highs school and that was definitely not scooped or sizzling. It was thick and syrupy... throaty, tons of bottom, and present, but mellow highs... But everyone does have a different sound in their head...
Like the Neo Punch's versus the Vintage P pickups... When I heard the Neo Punch I described it as the P bass for people that don't like P basses... it was... just "more"... If the CS4's are like that I will definitely give them a shot.

is that it? is that really it? 
