Anyone here tried the metal stylus replacements? I bought a set of 3 recently when my original plastic stylus broke at the tip. I now regret the choice (and am looking for a supplier of the original plain plastic types). I suffered an unexpected downside of the metal type due to its extra weight. Certain brisk movements of the PPC, such as when you pull it from a pocket and 'swing' it in front of you, can result in the stylus flying out of its silo. One of my 3 is now lying submerged near the bank of the River Thames as a consequence :|