Reply #11: I've just realised why it took me a while to figure it out...

[tjwmason]

I don't actually hold it like either of the pictures. Prongs facing downwards, the end of the fork in the palm of my left-hand, held in place with middle, ring and little fingers - thumb providing balance, downward force by index finger on top of the fork.

I had been pondering the two pictures for ages, on the verge of going to get a fork to see how I hold it...