If one of our gliders is eating dried or live mealworm and another one isn't, then he is trying to STEAL it away. there is always stealing going on, gizmo finishes his first isn't getting one from me, he's looking to see if anyone else has one to steal.
For $20 you can get a nice flat scale that measures in grams. Mine seems to get dead batteries to often, but gliders should weight in a range for males and females.
I've seen up to 160 grams for males.
www.sugarglider.com/gliderpedia/index.asp?Weight
Our Link is about 160 grams, while mary is about 70 grams. Other gliders are a wide range of weights, some have gained and some have lost alittle weight over time.