I started talking about stevia on this blog a long time ago when we began here. it was another discovery i became aware of once I used this blog to police my constant browsing and started creating notes and posts. Then it was not even legal to use it which was obvious nonsense of course and that soon got rescinded.
Now the food manufacturers are in the midst of producing successful products with the stuff. A little bit tricky as this shows us.
For the casual user, the best trick is to take a few grains of sugar with your stevia to overcome the initial off taste. There is real potential in stevia acting as a dilutent for sucrose in particular which allows a sharp reduction is exposure. After all there is nothing wrong with sugar that prevents it from been used directly except that we eat far too much and that then becomes toxic to our health. If we ate a traspoon a day as a additive to a stevia sweetener, it would be totally harmless.