I voted for Bailey, but also like the Hicks version. Which brings up the question: which is the best word choice, "quantity" or "magnitude"? Also, I prefer the versions that begin with pleasure rather than removal of pain. Just seems that this arrangement emphasizes pleasure rather than absence of pain.
Wouldn't the summit be the summit of pleasure/removal of pain and the bottom the "summit" of pain? At least that's how I read it from Nate 's translation above. Maybe the bottom could relate to katastematic pleasure.... But that might invite going down another rabbit hole, as it were.