you can get the pot out and glue it somewhere but the problem is that the pot is very sensitive, so if you have a hot glue gun I suggest that once centered, you fix it with that so it doesn't move.
If you have a soldering Iron you can replace that pot with a "normal" 5k ohm one (if hs-311) because they can be adjusted better and don't move so easily.
Anyways, you don't need a dremel and the steps would be
a) open the servo
b) cut the plastic thing with a knife
c) remove all the gears and with a screwdriver, carefully push the motor down (it's glued but it will move with enough strength applied)
See, apply force between the motor and the case.
d) remove the circuitry and motor
e) unscrew the pot
f) put everything back together and have fun