Hi T2k, you dont give much info on your profile, where are you from?
If you have ever owned a mamba you may be one of the lucky ones who find they can shoot fish straight out of the box? If not you will understand how frustrating it is to own such a powerful gun & not be able to hit a barn door?
The main bulk of the design has been added to the rear of the gun - that wont really effect the maneuverability but it will make the gun more stable in the water?
If you stick around db long enough you will soon discover I will use any excuse to mod a gun - normally because I like to make them look good!
