I haven't, so there's that... but I just thought of several things that she didn't list that many people use to treat mites, some of which I use for preventatives:
-wood ash; dust the chickens with it down to their skin, and dump some in their dust baths.
-use the DE! The main controversies with it, so far as I am aware, are 1) it's effectiveness when taken internally, and 2) it's affect on beneficial insects (is that what you meant by helpers? I wasn't sure). But if you dust your birds with it and use some in the deep litter and their dust bath then the effect on beneficials will be minimum (just don't apply on a windy day). Last time I checked there weren't a whole lot of beneficial bugs hanging around my coop. However, I agree DE shouldn't be used in the garden for this reason, so if you use your litter in the garden just stick with wood ash in the litter, but still add the DE to the dust bath and the chickens. Make sense?
-just skin mites? If you have leg mites, you can apply either Nustock or Bag Balm to the legs. But that won't help for skin mites. Just throwing it in.
-this one I haven't used, but there was a white wash recipe on the Natural Chicken Keeping blog that was supposed to rid a coop of mites. Do a full clean out, paint all the wooden surfaces, then add new bedding (and wood ash...). Even if you do a full clean out the actual wood in your coop will be harboring lots of mites, so it's important to treat the wood as well.
I would repeat the wood ash/DE treatments every few days for at least a week after doing a full clean out and white wash (dang, that sounds like a lot of work- sorry!). Then if you still have problems you may just need to try something more drastic!
