Ok, so I had done the paper trick, just to make clicking, especially on the "A" side of the keyboard better. I used two cut pieces of my business card. No folding as it was too thick.
HOWEVER, I just tried the screw adjustment and am impressed with the results. So impressed that I took the time to pull out my camera an take these pictures to help future readers.
I hope they help.
I had bought my Torx to change the keypad of my 8830 as the VZW default blue on silver was annoying... that is another part of the forum though.
I got the Torx at Home Depot for something around $9. It is a nice little tool with T4-T10. I found, unlike other posters that I needed T7. It was the best fit IMHO.
All the other posts explain what to do, lift the sticker, I too only had only one sticker. I lifted it with a straight pin, in fact I did not "remove" it, I just loosened it so I could get the torx under it. I made one complete turn on each of them and am, as noted, delighted with the results.
Again, I hope the photos help.