Tordon 22 - Anyone use it on your hay fields?

Browsing some herbicides and reading about Tordon 22. Might be an option to diverse the application of herbicides to help prevent resistant weeds. Looks like a pesticides license is required for application, but didn't see any residual that requires hay to stay where it's harvested like GrazonNext XL for 18 months.?
Anyone use this stuff, when do you reach for it? Good, bad and ugly if it?

Thanks!
Bill

Tordon 22 - Anyone use it on your hay fields?