I watched and stopped the video a few times and couldn't decide if it was big body or not, (hard to tell when you don't know the relative size of the player) but the Warwick bridge is obvious. I forgot they weren't used on the big ones. I discovered Ben Folds 20+ years ago after a write up in some guitar magazine because Ben used to put his piano, via a pickup, through a Marshall stack. Most of the early stuff was cut when they were all dirt poor on a red Epi Paul, and it appeared that after the first success with "Brick", they all got endorsement instruments. Even all of the oldest videos have Sledge with a Gibson, but if you look up their earliest shows, it's the Epi. I was surprised the bass didn't go for more on eBay, but I think most of Fold's current hipster fans could care less about the bass. It even came with a hardshell case. I think he may have sold off one of his SVT's too, which is how I found the bass auction.