Thanks to all for sharing your experiences. Very useful info.
After a few weeks with my old Herbie's Giant Gliders installed, I'm happy with the low end response in the room. The mid-bass/bass is relatively free of resonances, and the speakers are sounding very musical.
On the cable front, perhaps I'm 'listening with my eyes', but I've decided to purchase Cardas Clear Power cables for my 100As. I've had good results with Cardas gear previously. Even if it's just ticking that box, I think it's worth the (over?)spend to give the system every chance of performing to it's utmost abilities.
Thanks to all who have contributed to this thread. Your insights and experiences have been much appreciated.
Best, JAMES