Not sure if spraying MSMA out of the Magnum is going to work. Here are a couple of pics of my property sprayed equivalent to the standard 0.8 oz/M rate. Looks like the spray pattern is just too hot in the middle which causes burn, while the edges are not affected. My pattern width/turn method was the same that I use for spreading fertilizers. I have not had any issues like this with the commonly used broadleaf herbicides. Good thing this was my property and not a customers.