I have always gotten the 12 inch reg Bully Stick but we went the store so she could pick our her own treat for her 6 month old birthday.  Well to my surprise she picked out one of the 6 inch curly Flossie ones and it is history.  Only took her about an hour and a half.  She came to me whining about half way through it and was acting like she was going to hide it but I guess she decided it was too good to save for later.  Now the 12 inch reg. ones last for weeks I sure hope she does not have a problem with getting this one down so fast.  I guess she liked it.  I think I will stick to the tougher ones from now on and only get the wimpy ones for special!