Has anybody tried Hexy 1E for mites in corn?

I used it this year, so far (applied 1month ago) we have not found mites in the fields that we have used it. I had been using Oberon instead of Onager due to pricing. I used the Hexy due to the Oberon Rep in our area told us to switch back and forth every couple of years to help with keeping tolerances from building. Onager rep has said the same thing in private settings but wont say it in front o...