Graphical glitches: Unlikely to get fixed, but you might improve the chance with more specific descriptions. Which weapons, orientations, and actions (standing/walking/running/attacks/etc.) in particular.
Increased stash size/server load: Storage space is cheap. Larger character files mean more network bandwidth to transfer characters around, but the heaviest toll may be in increased CPU time for duplicate item scans on the actual game servers.
New Berserker Axe graphics: Yes, please. My first choice for additions to the game.
"If I ever kill you, you'll be awake, you'll be facing me, and you'll be armed." --Captain Malcolm Reynolds