Robert - you know I'll be there.  I've done it every year!
 
For those who haven't done this ride, you need to.  It's absolutely beautiful and challenging, plus they serve tons of pizza at the end.
 
For those who have done any of the LSR rides around Cleburne/Glen Rose, some of the roads will be familiar.  However, none of them climb "the wall", but this one does.  It's roughly 1/2 mile, but it's 21%.  Impossibly to ride on a DF without standing.  90% of the riders have to walk....

A half mile of 21%???  Good lord....  Where do you find something like that around here to even PRACTICE on???  The Beast in Tyler is only 11%...

Quote from FlyingLaZBoy on Oct 3^rd, 2008, 8:49am:

 
The hill up Burton Hill Road gets pretty close.  It's probably 15-18% for 1/3 mile.  I can get up it without too much trouble.  That extra 2% grade or so makes a huge difference on The Wall.  We occasionally do Burton Hill on our Thursday evening ride from downtown Fort Worth.  Burton Hill runs between White Settlement and Byers on the near west side of Fort Worth.  The hill itself lies between Merrick and Byers.  You can make a challenging and fun loop by turning west at the top of the hill on Byers, make a right (north) at Horne/Roaring Springs (a really nice long downhill.  You can pass the cars if that gives you a thrill!), turn right on Fursman through the neighborhood, and then right again on Burton Hill.  You can also go up Merrick, but it's extremely steep - gotta be 25% or more.  No way I'll ever get up it on a bike.  Some of my upright friends can get up it OK.  A couple of guys were killed trying to go down Merrick on bikes back when I was in High School.
Should be able to locate it on Mapquest or whatever.
Another tip - I would never go down Burton Hill.  There's a stop sign at the bottom of the hill and oncoming cars don't have a stop sign and can turn onto Merrick in front of you.  Just too risky on that steep of a hill.

Quote from evblazer on Oct 3^rd, 2008, 10:40am:

 
Last year I made it up maybe 200 feet before having to walk it and if I recall most people did the same, the boy scouts at the rest summit rest stop still gave me a "The wall" patch. It wasn't one of my best moments especially when I later got an email from a photo company wanting me to buy a pic of me pushing the Baron uphill..
 
MY SHAME!!!!

Wall...  I mean, "Well," I'm doing the Italy 300K that day anyway, so mebbe next year....

I think you'll find the bike wants to fall off to the side, not over backwards.  It's extremely difficult to hold the line up the hill when you're down around 4 mph or less and pushing too hard even in your granniest gear.  Last year I practiced going up some of the short steeper hills in Keller and could get down to about 2 mph (can't remember that I ever practiced going SLOW before  ), but can't say it helped all that much.  Having to push hard on the pedals just wants to turn the bike sideways to the hill.
I got about half way the first year and maybe 75% last year.  It's discouraging knowing that if I could have just stayed upright like 30 more feet, the hill started leveling off and I could make it, but just can't gen up the extra effort.  One of the problems, refering to Mark's profile, is that you expend quite a bit of effort getting up the longer hill just before The Wall.