All right. I've worked my way from L1, starting October 07 (or something like that), and I got through to L5. Now, I seem to have made L5 my bitch :D
My performance last week:
L5D1: 23 rounds
My performance this week:
L5D1: 30 rounds
L5D3: 4:19 (today)
I added a push-up tabata and a dumbbell military press tabata (if that is the correct term) after that.
In fact, I've added a different tabata after each workout recently, and I like the results, so far. I've also used kipping pull-ups instead of dead-hangs.
I'm curious how L6 will shape up.