I have undergrad in math with good grades, and masters in statistics with graduate probability and measure theory. So they will see I have the math background.
So far I have only sent it to Stanford and Chicago, where it seems mandatory/STRONGLY RECOMMENDED. Still wondering about what to do with Wharton and Washington, which seems to highly recommend it, but it doesn't seem to be a necessary condition. I will probably won't send the score to the rest of the programs I'm applying, where it doesn't seem to be too much of an issue.
For others who have the same problem, this are the relevant threads I found in the forum: