Nice man. It's strange because mine had the same length and diameter and looked bigger. I should perform a trial this month here in Brazil with one a little bit small.
Hi Will, I'm building SMURFs traps too for my PhD research and I'm facing some kind of space problem. Well, I'm using dimension provided by Ammann paper, but I think they are too big. By you picture I think your SMURF has a nice and suitable size. Can you tell me exactly how big they are ?