I decided to put my Mahlkonig peak burrs in my KF804 and test a few pour overs using a Kalita Wave, and Blue Bottle flat-bottom dripper, with various coffees from Onyx Coffee Labs and Cat & Cloud. The results so far have been amazing. Phenomenal sweetness, flavor clarity, juiciness, and mouthfeel. Tomorrow I'll do some refractometer testing to see what the numbers say. Ditting USA told me that extra sets of the Lab Sweet burrs aren't available yet but will be around April and should cost $450 + shipping. I'll keep testing but so far the results from these burrs are blowing me away.