Yeah, I did some digging and thinking over the course of my shift.<br/><br/>Ven's got a Grappling Hook.  I've got enough ranged accuracy to hit an AC 5 target five range increments away easily enough.<br/><br/>The grappling hook's going to make some noise, sure, but the<em>worst</em>case scenario is that there's a Sentry directly above the secret passage on the wall ... in which case he's 50' up.  Far more likely, it's going to be through a fair thick wall.  Even assuming DC0, i'd risk that, particularly since someone has to make the trip to cut the rope.  I can head up first and secure the landing pad, I can climb well enough for DC 5, and I've got Acrobatics 10 to soften my fall if things go sideways.<br/><br/>Everybody being backed up on that narrow-ass switchback just doesn't seem ideal.<br/><br/>I figure, if nothing else, it's a better route for Melee Centric characters.<br/><br/><strong>Edit:</strong>Admittedly, I'm at least partly motivated by the fact that it seems like a waste<em>not</em>to use it, and I like the approach better than Area B at least.