I did this multiple kick shells back-to-back thing a few months ago and it sounds awesome if you have a mic at the end of those shells. The sub lows are MASSIVE, great for rock.
I did use a massive kick tunnel on the record I'm doing right now, even without the extra kick drum, having a far mic at the end of the tunnel does capture a lot of "wind" and low-end, best drum tones I've gotten. After doing it, can't really imagine recording a kit without it
It was on some interview somewhere, a while ago. I've been curious about it lately. Can't imagine it working on intense double bass passages, but I haven't tried. Still would like some samples though, and if I do end up trying it out, I'll be sure to share.
It's like having a really fucking long kick drum. I tried it out years ago and liked it alot. Not done it for a while though. Maybe I'll get a couple of kicks out and do some samples for you.
I still think this is one of the best songs Paramore has ever released to be honest. Love the whole dark/moody feel and the vocals are great.