Setting initial sort direction on click - Tablesorter 2.0

Setting initial sort direction on click - Tablesorter 2.0

I have a table where 4 columns can be sorted. One is sorted high to low on page load. When I click on the other column headers to sort, the initial click sorts low to high not high to low. How do I change this?

All the documentation shows is how to do the initial sort direction, but I don't want those columns to be sorted until I click on them, and then I need it to be in the opposite direction to the default.

Hope that makes sense!