FWIW, you can increase the browning of the cornicione (rim) of the crust by brushing it with an 8 to 1 mixture of water and baking soda before you put it in the oven. I don't notice any perceptable change in flavor just more crust browning. I learned this from some earlier attemps at pretzle making. You might try half of the rim with and the other half without to see the difference.