It's always interesting to hear how different everyone else's experiences were from mine...
For Chuckboy on Thursday, I got in the Exhibit Hall line upstairs around 7:15, which is always the first line let in when the doors open, so even though they shunt you down to the G door I've found it to be the best way to get in. I wasn't that close, actually around the back of the Convention Center, and had no problem getting a wristband. I also thought the timed bands were a GREAT idea because there was no waiting when I went to buy and have the Labbit signed, plus Chuckboy signed my sketchbook. So kudos to Kidrobot for the signing/purchasing process.
On Friday I chose Hall H over the AB Dunny so no info there.
For Huck on Saturday I got in line for the Exhibit Hall around 7:30, maybe even later, and was even further back in the line. They opened the doors to the Exhibit Hall early (around 9:15 instead of 9:30), and when I walked over to the Kidrobot booth I was told wristbands for Huck were being handed out at 10:30. I came back around 10:45 and got a wrist band no problem. I ended up not buying the Huck, so at least one person without a wrist band that wanted the piece was able to get one.
I missed SDCC last year and was only there on Thursday the year before that, but everytime there's been a Kidrobot Exclusive I wanted (in 2009 I got the Lucky Cat & Amanda Visell Labbit the same way, and the Kozik Ancient Bob Slug in 2008), I've stood in line for the Exhibit Hall, walked to the booth, and received a wrist band every time. I just go there first and have had a lot of success that way.
Successful Transactions: Mz59Fifty, sgr1000, rco, therealchinaman, nypedestrian, DiZiXtOiD, Kevbayer, Ryn, Shibori, BurymewithmyToys, Roach, Prophecy, genejo, coreyxc4, Nicedream, Mongo Lloyd, Eiji, mooshysushi, lediscode, DManTX, Spooky+, SUSAN2008, originalkaws, killerz4ever, Dieselfeast, mzkayDi
WANTED: Bunnywith a Banana Suit by Alex Pardee
WANTED: Shuttlemax (Classic, red, HK order of colorway preference) by Bill 'Billions McMillions' McMullen