Tonight I oiled the wheel like crazy and grabbed some leftover "practice" roving from my class this sumer.
My first single, the maroon is a "regular" wool (I forget the breed name) and the peach is merino. The merino was much harder to spin. You can kinda see that it's thicker than the maroon strands.
Actually it was all pretty hard to spin because I've only used a wheel for about 45 minutes, and that was months ago. Once I got used to the maroon, no more breaking or getting all twisty, then I was out of it and had to get used to the peach. Practice makes perfect, I'm planning on grabbing some inexpensive roving to play with, then on to peanut and some superfine merino that I have two pounds of!