I made the blends by dewatering the engobe and glaze and then hand-mixing them in the desired proportions. The bottom sample is 90:10 glaze:engobe (G2926B glaze:L3954B engobe). Fired at cone 6. Notice the big change in fluidity between 60 and 70% glaze. Notice the 70% glaze sample (third from the bottom) is still glossy even though it has far less melt fluidity.