Interesting... It got me to thinking how to employ this in my rolling these days... and so tonight I was flipping through an old issue of Jiu-Jitsu magazine (June/July 2011) and there is a great little article with Kenny Johnson and Clay Guida with 3 variations of the Fireman's carry - one of them using the Gi collar! Sweet bit of info to have kicking around. I think I know what's coming up this week at rolling. Though I'm sure I'll find out the issues with counters to it as well! The version you posted is interesting. I'd be curious to see someone with more BJJ experience take a look at that. Obviously different sport, different rule sets - but jeez he makes that look as smooth as butter. Great execution. The version I use 'shoots the Christmas goose'... in that you go right into the crotch for the carry instead of with both legs. That saying stuck in my head over many years... I finally realized - 'goosing' doesn't have anything to birds and everything to do with shooting your arm through someones crotch.