WCD-Style Belly Pan Weight

[Chickenonastick]

After cadding up a 1/8" 6061 "WCD-style" belly pan, Inventor calculated its weight to be around 5.2 lbs. Would anybody consider this to be an accurate measurement? Assuming it has a diamond/cross hatch pattern similar to the ones displayed in this thread and encompasses the entire bottom part of the drive base.

Strictly in terms of weight, 5.2 lbs is around a pound lighter than the 1/4" unpocketed polycarbonate sheet that we used this year and had no problems with.