so now I have a pair of bobbins, ready to ply. but it doesnt look like it will be a smooth plying.
there is half of the 100g bundle of pencil rovings on each bobbin. But as you can see the yardage looks likely to be a non-match. The one on the right is of course the first ever spun, and hopefully I have learned from my mistakes by the time I spun the second.
Now to see what happens when I put them together.....