I also find the proterface jogging controls more intuitive, and don't really get the idea behind the big round control. It's hard to look at the printer, and keep your mouse pointer moving in a circle at the same time, while doing adjustments.
I did find that you can use the arrow keys, which is great, however the up and down keys do the same as the left and right keys, and you have to change the radio button to X axis or Y axis or what not.
Would it be a good comprimise to just have this keys do the following, without having to click on the appropriate radio button?
Left arrow key = x axis left
Right arrow key = x axis right
up arrow key = y axis away from you
down arrow key = y axis towards you
page up = Z axis up
page down = z axis down
or something similar?