This variation bypasses the middle peak and the downclimb into the notch from Arc Pass. It's a direct route to the notch between the middle and north summits from Arc Pass. This route could also be utilized to climb the middle summit from the notch. The route is not listed in Secor's route descriptions for this peak nor in any trip reports that I'm aware of. It's a short route, maybe 20-30 minutes or so, from start to finish. I found it incredibly obvious and easy. I would also assume if the 1st first party up knew the northern peak was higher, they would have utilized this route and bypassed the (lower) middle peak alltogether, but they obviously didn't.
If you have anything to contribute pertaining to this route, please do so.