I use gelatin, so cannot attest to the other one. What you do is the following: rack to secondary and cold crash for three days. I keep my beer near freezing, and in three days it is nice and cloudy. For five gallons, take a baggie, like knoxx or measure out the same mass, put it into a couple of cups of water, stir well, and bring to boil while stirring to prevent clumping. Once it boils, close the lid and let boil for a minute or two to sterilize. Then just pour it into your almost freezing beer. Don't worry about the temperature difference because the volumes are very different. That's it! Keep it like that for seven days and bottle. Your beer will be clear as glass. I even tried this with a saison and got a clear saison lol.