Just a followup. I still have and use the N360, and it's no better. I bought a Nexus inter-8 6 months ago for another bike and now mainly use that. The N360 is just SO inefficient. Which is sad because it otherwise is rock solid and well built. It's just that any kind of hill is too much and any headwind means shifting to the lowest 'gear' and feeling like you are pedaling in tar.
At this point I have to say the N360 is a failure. Fallbrook has been unwilling to publish efficiency data and can never answer a question with a direct, straight answer. It's still possible I have a defective hub, but I HIGHLY doubt this because other than the efficiency, I have no other complaints. Rolling resistance is almost on par with a derailleur system and shifting works as it should.
And just for a comparison. I the other day brought home about 13 liters of soda on my shimano inter-8 bike and it was still easier climbing the hill to get home than on just the N360 bike without hauling anything. Weight really is never an issue as I can haul hundreds of pounds by bike without getting too tired. Just pathetic really.