I love my Ohaus triple beam... even if it only weighs up to 3,610 grams(7+ LBS) at a 1/10 gram accuracy(dead on as measured by my pharmaceutical weights). I only care about weighing/controlling what goes into the plane, measuring out epoxy portions (5/1 west systems) and grading each piece of a bulk balsa orders. After the plane is built... I really don't care what the sum is as long as all the individual parts target weights are met. The only planes I ever weigh as a whole are my pylon racers.