It’s ironic that I write about the Volcano dustcap while sitting in a Rome hotel room, stranded on my way to Sicily because of an eruption of the Etna volcano (which I presume spews ash or shall we say; dust).
To be honest, I don’t particularly like the look of the Volcano under the stem, but it creates a stiffer set-up than having a separate dustcap and spacers. And with my massive sprinting power, I need that 0.0003% extra stiffness (insert self-ridicule). So the Volcano puts the stem at the right height in one piece, making it elegant in an engineering sense if not in an aesthetic sense.
Maybe I’m crazy, but I do actually think about these little things when spec’ing the bike, just because I can. That it won’t make a noticeable difference in the end doesn’t matter, that it is the “technically correct” solution does.