It's interesting to look at H!P autographs and see whose have changed and whose haven't. I guess change isn't necessarily an AB thing, because Eri's signature stayed pretty much the same during her time in H!P; it got a bit more mature looking, but the general design remained the same. Rika's and Sayumi's have remained remarkably consistent over the years (except when Rika signs as "Angry", of course). Yaguchi had the same autograph for years, then adopted a completely new one in hiragana sometime between 2006.10.29 and 2008.06.14 — I'm still trying to figure out exactly when it changed!
