I've had both as well.. Actually I've had all glass, chimera, and triple Carbon.
Looks wise: The Glass is prettiest.
Don't care for the half and half of chimera.. Just looks like someone couldn't make up their mind! ahha.. Just kidding..
Triple Carbon/ All Black.. It is a looker too/ Little faster
Honestly they are all so fast I can't really tell a difference unless I have a chronograph.
2 things I do suggest when getting one:
Get the XTL (sp?) lamination for torsional stability. .I think it really helps.. And get a Dark Matter Riser, it adds much needed mass weight to a Centaur...
Great bows! That is why the wait is so long...
STeve