Originally Posted by Lcasanova
I don't know if there is a written rule or a "this works better than that" thing going on.
Rule: Longer is clearer. After a week or so, hard to notice a difference in most beers though.
Keep in mind that anything besides Clarex or other extreme measures isn't going to change the mouthfeel much though, it is pretty much strictly for appearance. If you are getting a chunky beer, chances are good it is the recipe, not insufficient clarity.
For example, my hefeweizens (real, not GF) are very cloudy, but are also very light and crisp in mouthfeel.