I use starred words a lot since i simply need to practice much more to get them in to my memory. One problem however is that this seems to be in a way contra productive. I might write the same characters very often in one or several sessions and get them right maybe 10 times or so. What happens then is that the character is pushed ahead maybe 10 months or sometimes even several years. This is not suitable, at least not for me since the character only is in short term memory. A couple of weeks later I will most likely not remember the character any more. It would be nice to be able to turn off tracking for starred words. It might be just me and my very bad memory having this request but at least for me this would be very useful. I know that this is over practicing but for me it is the only way to get it to work. By age it is getting harder to learn Chinese;-)