@tonydec .. I’m just going through "itchitis," these speakers sound good, can I make them better? : )
Yes, as already suggested, give your speakers, drivers, woofer surround, crossovers inside - 200hrs a real chance to settle in. Everything is stiff right now. Similar to @ghdprentice spent thousands of hours with different cables. imo, it's still premature right now to be swapping a bunch of different cables in/out, to later find out sound changes again. While your amp/tubes are known to have a softer sound, this can be quite nice too, so give yourself time to settle in with the sound too. 200hrs plus some speaker toe-in for now, maybe. In time, you might even find yourself toeing speakers back out once settled in. Then, If still not satisfied, get loaner interconnect & speaker cables from a dealer to try for a week or two, at least. Initial break-in and settling can be agitating, yes, give yourself time. Best of luck.