Saddleback has a West/Northwest exposure which is favorable to UPSLOPING when the wind is blowing from the West/Northwest (usually after the passage of a cold front).
Upsloping intensifies snow showers and snow squalls. This is the primary reason that Saddleback get so many 1-2" snowfalls during the course of the winter while at the same time Sugarloaf gets little if any. This gives Saddleback about 36 "extra" inches per year over Sugarloaf. Sugarloaf has the same high elevation as Saddleback, but not the exposure - theirs is more Easterly.