Are the best bottom and Grovia inserts interchangeable? I like both covers but the BB inserts are so much more reasonable then the Grovia ones so I was just wondering if they would fit in the Grovia shells.
I actually just grabbed one of each to test it, and you can't really interchange them. For one, the snaps they use are different, so the BB insert won't actually snap into the Grovia cover. For another, the Grovia inserts are made to be used with the cover no matter what rise it's on, whereas the BB inserts are "sized," so they really fit best with a specific rise size (did that make sense?).
Short answer: no, not if you want them to snap in.
Re: Insert question