i do 'the fingers through the leaves' way this way old dead leaves come out. I also wear gloves to avoid the leaf edges giving e cuts like paper cuts . I think if you cut the then they stay with cut ends. See what others suggest Scottish.

I cut my uncinias right back to ground level - they soon regrow

I agree, just run your hands through and the yellow leaves should fall out. Quite therapeutic. I have Carex frosted curls and it sometimes grows too long and gets matted, I just cut it to stop it looking a complete mess.

Thank you all!