Do you use it on a wire-core or a rope lanyard? Does it behave differently there on either one?I own both. Bought the non-swivel first, got the swivel shortly thereafter. The swivel version not only tends more easily but sets more consistently as well. Not that I feel it is unsafe or anything - I still use both (but would swap out for 2 swivels in a heartbeat). Just in some awkward positions it can have issues setting with slight side pressure that the swivel seems to mitigate.
Never really had that problem before, using a hitch, but I happened to spend way less money last month that I thought I would have too, so I think I'll treat myself to the swivel version anyway...One advantage of the swivel is that it doesn’t matter if your snap end gets pulled through the loop between the positioner and your termination end. This means less fuss in awkward positions.