THe very fast spin you are referring to is known as a scratch spin. Yeah, you get dizzy, but you learn to overcome it quickly. If you just STOP after the spin, you can fall on your ass. But, if you start moving again immediately, you adjust and get over it quickly. A rapid eye movement in the opposite direction of the spin upon completion helps.
It took me a few days of constant practice to not feel falling-over-puking-dizzy.
