It seems we have two different plants in the entry for 'Excalibur'.
All of the Fernwood photos show a smooth darker green semp with tips and trim at certain times of the year.
The other is very different, slightly fuzzy with tufts and fairly long cilia lining the leaves.
Hen and chicks (Sempervivum 'Excalibur')
@JungleShadows Kevin do you know this semp, or have a description of it?