Pretty self explanatory title.
I'm using a very thin gyuto to practice with. I know a usuba would be better, but I've heard it should still be possible with a gyuto. It has about 4 inches of dead flat profile at the heel end of the knife, and is plenty sharp.
In particular, I've had difficulty in cutting daikon into a nicely rounded cylinder in the first place while removing the peel. Any tips?
What should I be doing with the thumb on my off hand as I cut? It should be placed over where the edge meets the daikon, right? Should I be applying any pressure? I should be moving the knife up and down rather than the daikon, right?
Does a polished knife edge or a toothy edge work better for the job?
Any other tips?