When they made the switch back at first I scratched my head. I felt bad for Cam and still do. They're playing with Cam seemed a bit more up tempo and I really got into that. I saw all my first shows with cam, and it was sad to see him go.
HOWEVER, once Nick stepped in, I listened to everything I could, current and from his first tenure. He was rusty at first after getting back behind the kit, IMHO and all that, but the deeper I dug the more I appreciated how nuanced and beautiful a player he is. After I got a chance to see him live for the first time in Asbury Park this summer I was floored. I have since become a huge fan of his. He is intricate, collaborative and takes lots of risks that pay off big time. So, the move was sad but I get it now.
Finally, I miss Cam but get why they went back to their original drummer. I think they could have handled it better, and hope he knew it was just a temporary gig, but that isn't for me to say.
Thank you to this community for all the great music, shows and talk. I love the above discussion, the examples of his playing, etc.