Did anyone ever find any advantages of the 3.15* version?

I don't know for sure, but I think ( from DesertDog ) that if you order from Linear-Logic directly they are out of the 3.15. ( maybe they made more retrospectively? )

Anyhow, if Amazon has some "old stock" on the shelf, this could be good in this case. In this case, I will order one for my newest hybrid from Amazon. Does Honda have any glitch with 3.15*? Probably not. But I want the ability to stack both of them in my Ford when I drive it.

Thanks for the update.
-John