@Moriarty, look's like your new here? I don't have a answer on removing the snap's as my car hasn't got to that stage, but I would work around them, any time you remove anything from Filberglas and reinstall it seems to liken the chance of leaving chip's and the hole becoming bigger. If your looking for NW friend's to hang with, we just had a meet-up at the NW Historics Races last Sat. Please PM, myself or anyone though our NW club forum. We look forward to new member's. We'll show you the secret handshake
Cheers Tom.