It's important to try and change it because it's not typical. Otherwise, do what you feel most comfortable with. At some time you'll find yourself with a putt that just won't be driver worthy. I'm thinking of an up-a-hill putt that you either need to stick in the chains or stick on the top of the hill because otherwise you're going to roll off into a deeper ditch, OB, or not have as good of an opportunity in your next putt for par, or bogey, or double bogey, whatever the case may be.
If overstable is what you're used to, maybe a putter like a Zone or Rhyno will fill the void left behind by having something that hooks hard and is predictable but has a bit more ability to do the up-the-hill putt better.
When all else fails, you can learn proper putting techniques for inside and outside the circle that will improve your chances on hitting the first putt with a putter. Or alternatively, you can figure out how to drive within three feet of the basket and use the disc you drove with as your putter. But that would require you to be really, really good on every single hole.