Ok as I write this it is midnight, and I should head to bed. But I thought I would write up a few of my ’secrets’ to spinning a nice, as-consistent-as-possible single, and a nicely balanced plied yarn. Just bear in mind I’m dog-tired right now, in case something doesn’t make sense, mmk?
Starting with your roving, I like to split it. I take the entire piece of roving, 4 oz lengths are good – and split it in half after un-seaming it (find the seam, and unzip it with your fingers). Take a half, and split again, one of those halfs and split again. Keep splitting until you’ve split the entire piece of roving, oh about 12 times or so, and the pieces are about as big as a pencil. Thus, pencil roving! I find that this helps me to spin more consistently. And it’s a heck of a lot easier and less time-consuming than pre-drafting.
Another secret I’ve figured out with singles, is that you always want to spin them smaller/lighter than what you really want. If you want a 14 WPI single, spin it at 16-18. Because when you’re finished with the yarn, and you wash it, and set it, and dry it, it will fluff up. So if you want a 2 ply worsted weight yarn, spin 2 24-28 WPI singles instead of 2 22-24WPI singles.
Now, I’ve found in singles, if you’re going to ply the yarn, you want to overtwist the single a bit. Why? Because when you ply it, you’re letting out some of the twist. You don’t want that single to fall apart on you or have barely any twist at all once plied do you?
When I ply, I treadle, and count the number of times one foot treadles. I treadle until the yarn looks good between the orfice and my pinch finger. Then I stop treadling and loosen the tension in my hand, so the yarn lays relaxed. Does it twist on itself right away? Too much twist. Is the plying really loose? Too little. If you relax the yarn enough, it will twist back on itself lightly, and this is ok. You’ll straighten that out later when you set the yarn.
I hope some of my tips will work out for you. I’m no expert, but I love to share some of the knowledge I’ve discovered to help others.