I say no, and yes, I have signed up especially for this reply. I have been following Live-eviL and its projects for a few years now, attracted by the care they put in subbing high quality classic anime that no ordinary fansub group would choose to do. In these few years however, I have seen you repeat the same mistake time after time.
Nearly every season a new show gets picked up. Now, this in itself is a great thing. You have no obligation to focus yourselves just on subbing classics that attract less than a great fanbase and subbing more recent hits will also result in gaining a greater "brandname". However, your group is in no shape to constantly start new shows. You have a plethora of unfinished titles, that many a fan would like to see finished and the chances of this happening decrease with every new project you take up on yourselves.
I would even go as far to say that each new series you start is a slap in the face to some of your most avid fans. When picking up Death Note, you showed us that you can sub a shows at a more than decent and respectable pace, without the usual accompanying loss of quality. Why then is it, that a show like 3000 Leagues in Search of Mother has not seen a new release in ages? Why can you pour your resources in a new show, which is almost guaranteed to be either licensed in the near future or to be fansubbed by other groups and can you not do the same for a show which no other group seems to have an interest in?
You almost got me thinking that there is some kind of inherent problem to subbing older shows, but then I see a group like Central Anime who have put out Touch at an incredible pace, despite it being 101 episodes. I see C1, who have already finished one World Masterpiece Theater anime and who are currently subbing another at an impressive pace. Why can you not do this? Why must you allocate your manpower to new projects, which will be subbed by others, and can you not finish up your own high quality shows like the aforementioned 3000 Leagues in Search of Mother and Snow Queen? You have proven that you can put out an episode a week, so finishing up the first of these two should be possible in less than a year time.
That's why my answer is a very firm no. Try to actually finish some of the projects you have started before beginning a new one. When was the last time you have actually finished a somewhat longer show? Was it Rose of Versailles? Since then new projects have been taken up, but none have been finished.
This critique does not hold for the Matsumoto division, by the way, as I commend their strategy and because of the fact that their picking up of new titles does not get in the way of finishing their current projects.