As my dear late Mother would have said :
" Never trouble trouble, 'til trouble troubles you"
They work fine and I'm sure I'd make them worse by messing about with them.
I have 2 pairs of Felco ( only because I once lost a pair, then re-found them )
No 2 for everyday stuff and No 8 which I prefer for more delicate stuff like dead heading.
I'd not have any other brand.
Hosta, maybe you just have very strong hands, so don't need to sharpen yours.
Pat, I can do butch when I try.