Don't expect it to go as far as understable, but use it when you have to go left around something...or sometimes more importantly, when you can't go right because of OB. Force yourself to use it more and more, and you will start to like it (OS discs in general). Also they are good for FH shots because of the added consistency, and they will go right pretty easily to give you another type of shot (different flight path from backhand turnover or anhyzer).
What you sacrifice sometimes in glide and the extra distance, you gain in trust and ranging your shots. They may not be quite as fun to throw in open fields, but the more you use OS discs on the course the more you will see how useful they can be.
Edit: How far can you throw your different discs?