When supporting Carradice saddlebags on racks, I always wrap the front seatpost-intended strap around the front of the rack. I can't vouch for this with Sackvilles, but I've never had a problem with swaying loads on Carradice: The front strap centers the bag, and the weight of stuff pushes it solid to the rack.
-- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.