Done most of the above.
Splitting a little piece of Yew for a temporary knock overlay.... thinks...
I'll just hold the wood in left hand, put the axe on the top and give it a sharp tap on the floor... that'll do it
The axe was V sharp and there was a knot in the wood so it split out and went deep into my finger. Fortunately I had some of those closure strip thingies which held it together and it healed pretty quick. Made me a tad queasy and a lot more careful.
Del