Highsteppa is def on point CDM, use Met-52 even when you think they're gone for another 2-3 harvest at least. Also I think I remember you mentioning you re-use your coco/soil my suggestion would be not to do that. Not sure what type of brands you use but I've heard of FFOF and I think roots organic coco of having issues with RA's out the bag. The FFOF I can say for a fact ruined a friends garden until they realized it was that. They switched over to coco bricks, took new cuts off their moms, fed once with IMID on new moms, then used Met-52. The very next harvest their wasn't any issues, and as far as I know they're still keeping on top of the Met-52, even with no signs of RA's. Another point to mention make sure you throw away all your old root balls, pots, etc...the cleaner the environment to start off new the better.