It's not how filling this is, it's forcing your body to consume 50 hot dogs. I'm 8 deep now and it's not pleasant. By time I get to 30-35 I'm going to want to punch a baby. As far as the buns go, the guideline was we didn't HAVE to use buns (that was part of the original bet). We've gotten two 16 packs anyway and we'll use all of them without a doubt.
This is a warm-up for the larger bet, which was 100 hot dogs each in three days, which we'll do sometime (probably a long time, don't think I'll be wanting to eat hot dogs anytime soon) down the road.
Just to remind you guys, I'm live blogging some updates from time to time at
http://blametheref.blogspot.com/