I weighed what I have of the second ply on the spindle yesterday, and was nicely surprised to see I have about 7 grams already spun! My spindle weighs 45 grams, which is a nice weight for me to do fairly fine yarns. I once spun some silk top into what a friend called 'frog's hair'.
Heck, at this rate, I might be able to start plying this weekend! That'd be awesome. Funny how things get done when you actually put time into them ;)