New ski terminology:

Skis now are measured ~5 ways.

Length, like always.
Tip width
Waist(middle of ski) width
Tail width
All of the above gives you a turn radius.

The 63s I have, have a very short 11m turn radius. Most skis have about a 17-20m turn radius. YOu can vary the measurements(by changing skis) to get the kind of turn you want in whatever conditions you find yourself in.

Eastern skis generally have a shorter turn radius than western skis and are shorter in length. Fatter skis generally float in powder snow conditions better than narrow ones.

Skiers come in all shapes and sizes