On a related note, I'm becoming a big believer in generally making all converts fulfill the entire catechumate (three years minimum, isn't it?) I think it's only because mangled ideas have prevailed amongst many Orthodox (and sadly, many adult converts to Orthodoxy) about just what it is to be a Christian (and just what it means to be a participant in the Holy Mysteries.) There's kind of a "Roman Catholic" idea in a lot of folk's heads, that if they're not able to approach the Chalice (or in stricter practice, not being allowed to attend the Holy Oblation in the Divine Liturgy, which I'd actually like to see "brought back" as it re-enforces an important truth), they're simply spinning their wheels and not going about anything spiritually important. That idea has to get pushed out of people's minds. "Liturgy" is a big idea, and rightly encompasses far more than the Eucharistic Sacrifice, and it's all very important. This is why when catechumen complain that they are not able to go to Holy Communion, I cannot help but sense a failure on the part of their pastors and mentors in properly instructing them.
It's well known that most adult converts to Orthodoxy come from some other "Christian tradition." While it's true that there has commonly been some leniency in receiving people from heterodoxy in terms of the length of their preparation for Baptism (esp. when it comes to "corporate conversions"), I think the belief that this still applies today is misguided, since that leniency reflected a very different set of circumstances. Save perhaps the anti-Chalcedonians and some of the Uniates, the "church life" of most religious westerners (Roman Catholicism and Protestantism) is now so alien to Orthodoxy on a theoretical and practical level, that the idea that it's a "shorter jump" for them to come to Orthodoxy than for someone who is from another kind of background (non-religious upbringing, Muslim, Jew, etc.) is incorrect.
btw. St.Paul warned against the danger of "laying hands" upon a neophyte. Much like maturity in other areas, I'm inclined to believe that this warning does not only include those "who have been Orthodox for less than X number of years."