Congratulations on your great start!
You started without Libba for considered reasons, and while it is really hard to ignore that one game, it is still just that, one game. In exceptional circumstances. As for downgrading Pendles, I wouldn't do it if you think there is even a chance you'd want to get him back in again later. Seeing as you started him, it would seem that you might want him later. We that didn't take Libba knew he'd post some good scores at some stage, we were just hoping it wouldn't be Round 1. JJ too, is "just one game". He is an unknown factor, when the pressure is applied. Will he wilt, and become a mid 80's trap player? We just don't know. I'd stick with your plan for now, and hold your trades.
Good luck.