Initial disappointment with 1st set of “expensive’ IC’s...

They are like all interconnects, they need a hundred hours or more to get broken in. Fuzzy or flabby bass is typical before breakin... although unfortunately typically they get a bit softer in the upper frequencies during breakin.

I used Cardas when I had a system that was too trebly and harsh. Their signature is warm. Personally... my audio guy keeps letting me try new incarnations and the always tip the balance too warm with my equipment. But, I would cross my fingers and run them for a week or two 24 x 7 and then judge.

@jl1ny

I agree with @ghdprentice 
Be patient.  I run Cardas myself.  Used, it seems to take a few days undisturbed and a good (20-50 hours?) of playing time before they settle in.  New, more like 100-200 hours of playing.  Even when moving wire already in the system, it seems like a day or two before things "settle in". To my ears/with my equipment, and with new wire in particular, break in always seems to involve the sound opening up (more air, space, depth) which I suppose could well be due to a little more high end extension developing.  

Having said that, once sufficient time has passed, I (obviously) can't guarantee you'll like sound with the Clear Lights.  Regarding the bass, however, if it persists in being "fat", consider moving your speakers a bit if you  are able.  In addition, if you are single-wiring to bi-wireable speakers and use jumpers, try Nordost's method of diagonal connection (i.e., Black (-) to the upper post, Red (+) to lower with jumpers connected as you normally would).  To me this method of connection (vs Audioquest diagonal which is the opposite...Red up/Black down) provides a little more high frequency energy.  

Good luck.