there is a big difference! the ring will turn and the wear will be even, the carabiner wears on one spot only.I have a Sequoia as well and don't have a ring or swivel on it (as of yet). Never climbed with one either on any other saddle. I've always preferred clipping directly into a bridge rather than a ring or device.
I forgot who it was, but I'm pretty sure I remember once seeing a fellow buzzer saying something along the lines of "what's the difference between a carabiner and a ring running against the bridge" in terms of friction and wear and tear.
Although I know a lot of people utilze them with no issues, just something I haven't gotten around to looking into.
maybe if your work does not involve alot of bridge movement or your saddle is lying in the car most of the time anyway, it might not matter.











