I don't know about the cartridge difference between the Switchback and the X2. The significant difference between those binders is the pivot point has been moved back on the X2 -> more leverage.

IF THERE WAS A VIDEO OF THIS, IN THE NEXT FEW SECONDS YOU WOULD WITNESS THE MAKING OF THE CLASSIC SITZMARK

^^^^
Great map! Me likey.
You have a future as a Cartographer. F*** GPS.

NIce retro review.
Keep up the good work, Johnny.

wrong-go.
not rooooooooooooooooooooooooooooooooo....neeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee...heehee
and furthermore, those are not birds.....well.....not anymore..........for nevermore

Hell-0.
Watzup, Buttercup?......or should I say....."TeleVt"