KSHay, Hartley and Harbin should both have straight northern BG. I literally talked to Bill H about an hour ago and I know he has BG because I'm delivering some for him end of this week.
I talked with our SE Bio again tonight and we do some contract work with Harbin (Mark), very professional farm there BTW. Bio has 7 ponds in SE corner and says he just isn't seeing growth rates that northern BG exhibit and recruitment has been sporadic at best. His opinion was that it just gets too cold still in this region but there are always exceptions and If you want to try CNBG, please let us now as time progresses. This is something I can pass on based on your experience depending on how it goes.