Thanks for clarifying. If you have a bunch of beers that finish high, but you are happy with them, then I wouldn't change anything as long as you don't run into bottle bombs. I have had a few beers finish a couple of points high and they were just fine, but I didn't run into any greater differences from what I can remember (I am a lousy note taker)
If you do want to lower your final gravity, I'd first check the hydrometer to ensure it's properly calibrated, and if it is, take a good look at your process to figure out what could be causing the high FGs. Most likely it's insufficient yeast pitched, insufficient aeration or inadequate temperature control. But like I said, if you like your beers the way they come out now, and you are not running into gushers or bottle bombs, I wouldn't change a thing.