I'm going for the maiden tomorrow on mine... BIG brick of lead in the front of the battery box (most lead I've ever had to add to a plane), but after running my YS91 for the first time in the plane today, I decided it's got plenty of power (I think I was psyching myslef out earlier) and after the lead payload....it weighs probably 12.25-12.5 lbs which is not too horrible, considering the "payload" and the fact that there's lots of assembly where glue is used (And I'm not conservative with the epoxy like the assembly line arf builders are!). I'm hoping for a nice uneventful flight, and can't wait to fly the Bear!