The rain let up some, to just a sprinkle, so I went out and measured the leaf width of 'Highland Lord',
I tried to measure at the widest point with the leaf pressed down flat. It was 21mm., it is still a young plant so I expect it to continue to enlarge the width of the leaves. I looked around at the other plants near by just to compare differences and the widest leaves appeared to be around 30 mm., and still the narrowest for me was on some of my 'Crimson Pirate' plants at only 5 mm. I did also measure a few plants with their leaves around 13-15 mm. So in my garden I don't expect 'Highland Lord' to have particularly narrow leaves.
These are mostly still young plants, even the 30mm. width was on a young seedling. The Crimson Pirate also appears to be very young, I remember transplanting this one in the spring, but it is spreading and putting out new fans. So I really did not learn much from my measuring, I think it would be much more meaningful if all the plants were at least three years old.
There was still a lot of leftover rusty looking leaves and other yellow and dying leaves on almost every plant. I did notice one standout plant with beautiful dark foliage with not a sign of any type of yellow leaf and that was 'Primal Scream', it looked fantastic.
This is one of my 'Crimson Pirate' plants with the narrow leaves, I have several of these...the plant multiples fast. The heavy rains recently has it beaten down.