Reason for/advantage of the ‘spade grip’ on the Spitfire and Hurricane

[Fareastdriver]

I do't know if anybody else found this but I could never fly an aeroplane accurately with a vertical control stick left handed with the throttle in the right hand.
'Loop style' control columns with two hand grips working in the same way as a steering wheel I found easy and I could fly left or right handed to the same level.