I also have Harbeth 30.2’s - all details in my virtual system.
I recently switched almost everything to Zavfino. Build quality is top-notch. I have Nova speaker cables ($390 for a 2.5m pair) - no further interest in changing. Happy to see the Nordost Purple Flair’s gone.
The step up from mine are the Prima’s at $719.
Both OCC copper. Spending more than the $900 Morrows doesn’t necessarily mean you’ll get a better result in your system.