We have a WaterBoss Model 900. I wouldn't take nothing for it. We have a lot of iron in our water so it's a must have for us. I've had it for over a year with zero problems. I always keep it full of salt pellets and usually dump a 40 lb. bag in a month.
I did a little more checking and they seem to be bogus from what I can tell.
Makes sense to me as the theories were referencing how electric wavelengths could properly penetrate a conductive container (pipe). farraday's cage it is called...