The biggest Becker I've used so far is the BK7. That's in part why I voted for it. I also voted for it because bigger isn't always better when you have to carry it around. Especially if you're on the move all the time. My opinion is subject to change after I've tried the BK9, but those are my thoughts. I get a lot of exercise, and even then I can tell if I'm carrying extra on my belt. But I may have to amend my opinion sometime around Christmas...