I've just looked it up further, apparently it's a Wacom Intuos4/5 feature. It makes it really easy to draw sharp precise lines and patterns. I use it all the time since it's so helpful.
Is there a sensitivity option anywhere in the controls because that may help you, it did with me.
unfortunately, this tablet has little-to-no features. perhaps that is why other artists have such nice lines :o
when sketching though, it doesn't really matter. when inking, paint tool sai has a nice little "stabilizer" feature that helps out with lines. it's the "style" of the lines that i want to change though.
eitherway, i dont have $350 so that will have to wait