Is it worth it? Do you even need to do anything to it?
I think it depends on the kind of pencil roving you get. I spun some that was tagged “pencil roving” but it didn’t look much different from any regular roving – I had to draft it a lot before spinning. But then there’s Crown Mountain pencil roving – you can either knit with the roving as-is, or draft to the desired thickness and spin it. :shrug: