Well, I hope "busy" isn't a substitute for "shitty" and you're doing fine. Just to think how much you have done over the years... and the speed you've been releasing new FM subs - you need a medal for doing such an amazing job and I thank you very much for all your work! Not only as a viewer, but as a translator as well. I mean, without you I wouldn't have anything to work with.
Let's hope that someone will back you up on the longer episodes. Although, if that's not the case, in my opinion it would be more practical to take as much time as you need to make subs for the better albeit longer episodes (or the one's you like best), than to waste time on relatively throwaway stuff like Harry Buster. But then again, you know better what's best for you.