Power cable for Lavardin

Hi, this the question for current/former Lavardin IT owners.

Have you had any success in upgrading your Lavardin ( CMR or CHR) power cable to anything from a different brand?

I know Lavardin performance can be improved slightly in audiophile terms since various cables I tried often showed improvements in some areas, such as high freq. detail and resolution, or lower bass, or quieter bkgnd and cleaner midrange. But I always come back to the CMR eventually due to its rather specific rendering of the mid range/upper bass.

PS: I am aware that Lavardin strongly recommends their own cables. ( It doesn't mean there are no better options)