Yep. My girls love their FF mush! And, after about a week and a half? (I forget exactly) their messy butts are clearing up! So, the change in feed style may have been the culprit for that, but it was temporary.
Also, it's important to drain the feed/mush. Use a colander or large strainer to scoop the feed out of the water. The consistency of oatmeal would be about right.
Since you're so new, you may not know it's important to use non-metal containers for both brewing and feeding the FF. The process of fermenting the feed can leech nasty chemicals out of the metal feeders, which will hurt your birds. Wooden troughs, pyrex, ceramic, or glass dishes work great for serving up the chow. In a pinch you can just plop it directly on the ground.