The thing about wrong or bad plants is it may take a couple years or more to see the mistake. The odds for correct plants from major growers are much better than those from brokers and that is essentially what SH, MB, KVB, and Brecks are. My first clue was their telephone numbers all were for the same office building. I spent many years in telecommunications equipment work so little things like that catch my eye. I think they are all owned by the same holding company. KVD may be an exception.
Corrected KVB.