Dani's mum Tracey has Motor Neurone disease and it later becomes apparent that she's in the final stage of her illness, having contracted aspiration pneumonia.
When I hand sharpen I have little or no burr on the steel, regardless of the steel type.
Then you end up with more burrs and less clean of a finish.
This is usually the same with Pro Sharp too.
Not a huge issue, but it does require attention to detail.
There are absolutely more burrs when using the Sparx which I find a bit annoying.