Well what did you brew? Stout, IPA, Barley wine? I guess what I'm getting at is that your mash determined mouth feel of your beer. What were the numbers you were trying to hit? A couple of points will not make a difference. If your numbers were close to right I'd leave it alone.
Ok today I made a Pilsner and a Helles style. The srm is way off. Ingredients in the Pilsner is 9.5 lb of pilsner malt and.25 lb of carahell boiled for 60 min. Helles 9 lb of pilsner and .5 lb 60 min boil. Both 60 min mash here is the color 17 srm! Same water. Any ideas?
After one week I would check the gravity see where it's at. Then the next few days to see if it's still changing, until it doesn't........I have left many a beer in the primary for a month or so and loved every one of them. RDWHAHB