I've gotten super-busy and super-sidetracked with ALL THE THINGS.
That said, I think that my strategy is still viable. For each comic, I'll read until I'm caught up, then move on to the next one. However long it takes, by the end I shouldn't be more than, say, 2 months behind on any one, so I'll repeat the process. That should get me down to under a week, at which point I can do my previous accidental standard catch-up method, and then be caught up. Once I'm caught up with everything, I can go back to checking webcomics every day after