No. Fixing shotgun is the number one reason I wanted to see the code, and thus, why I became a Dev. When I asked to be introduced to Source modding, I was told to gtfo because I was on dialup and They The Coders couldn't be arsed to use anything but voice chat. The problem was thuroughly ignored, and later on any time I tried to help with anything I was told to shut up, or do it myself. Which I can't do (properly) without working WITH a coder who knows how the hell Source works.
The theory of shotgun as it is right now, if all five pellets strike one hitbox, the damage is perfect. If pellets miss, the total damage gets... geometrically worse. By that I mean that one pellet to a limb and four misses does about 1 or 2 damage. Which is absurd - 7.5 should be the weapon's worst strike.