Volt Goat Jelly's gives your weapons both the electrical damage modifier when stuff is wet as well as an extra damage boost for just being an electrical weapon.
This does not apply to Electric Darts or Morning Stars, presumably because they already have this to them. It makes these weapons sort of moot since they were highly desirable when stuff was wet until of course the Jelly came.
Normal weapons and darts are on the left, Morning Stars and Electric Darts on the right.
Eat Volt Goat Jelly. Make it wet. Bring in the dummytarget. See the damage difference between normal weapons under the effect of the Jelly, and Electrical Weapons not gaining any extra damage.