Oddly enough, it was this thread that got me into plucking my pubes out one at a time with tweezers. In the past two years I've noticed significant changes and have registered here in order to share some tips and tricks.
When you tweeze a hair you will see a little pube in the tweezer. However, that doesn't mean you were successful.
On a successful yank you will get the hair, and at the end of the hair you will have thick bulbous root. In my case, it's literally a ball of liquidy brown pigment at the base of the hair. If you get a big one of those, it's likely the hair ain't growing back.
For best results, take a hot shower before tweezing! it opens the pores giving you a better chance of yanking the root and causing less discomfort.
If you pull once and don't get the hair, give up until another day. Even if you pull the hair, it is unlikely that the root is coming with it.
Shave a week before hand, it makes plucking a lot easier. because the pubes are a lot shorter. This way I can tweeze a large area in just a few minutes.
Try to pull the hair out at the angle that the follicle rests. This is also another benefit of shaving a few days before hand, so you can actually see what direction the follicle goes. If you pull with the direction of the follicle you are more likely to get the root. Fortunately for me I've got dark hair and light skin and I can see the hair under the skin pretty well and know what direction to pull.
Every time I ever pulled a hair off of my sac, it almost always had the root on it. I'm at the point now where, even after 2 months, I have very few hairs on my boys. The few hairs that are there are pure white and are either very very thin or are thick (but still pure white) and a bit course to be honest.
Later I started on my bikini line and a good majority of the hairs came out with the root. However, there are a lot of thinner hairs(especially leading up to the happy trail) that, for me, are less likely to come out with the whole root - looks like I may need laser after all.
Now to figure out how to pull out my ass hairs.