Aidan
The Marvelous Meter Man
I don't know if this has been brought up already, but here we go. If Cyrax shoots out a close or mid bomb (don't know about far) and then keeps shooting the SAME distance of bomb (first shot was a mid and second was too) he will only open up his chest and nothing will come out. This will cause Cyrax to lose about 1.863% of meter per empty chest. I have been able to do 2 empty chests so I lost 3.726% of meter which is how much 1 bomb builds. This also occurs when you try to shoot a bomb right after you net someone, if his chest is empty you lose meter. Hope this helps, and if it was already found I apologize.
