Eva, always test first before eating and shooting. Food can make the bg go up but.......if the cat ,for some reason, is still working on a long duration, can happen, then food may not bring them up enough. Test, then make sure kitty eats, then shoot. Lately with Mishka, I test a good hour before her normal time so I can tell what the heck she is doing for that day. Then when I do her normal test I can look back and see if she is still going down or on her way back up. She's playing games with my mind lately :roll: