Finally managed to pull one off just now. Used a tiny flathead screwdriver to remove debris from the Allen hole then gingerly tapped in the correct fitting Allen bit with a hammer before using a ΒΌ Dr ratchet handle on it with a piece of pipe over the handle for leverage. Then used a 13mms Β½ Dr socket to remove the nut.

Strangely Tyler I saw no D shape hole in the carrier or the bolt head underside. It looks like you're dependent entirely on the Allen key socket to keep it from turning whilst undoing the nut. Better not round it out using an undersized Allen key by mistake.

Makes the at times frustrating Victa set up look better.

Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!