Thanks to everyone who has a view on this venture - some interesting questions.
I'm indirectly involved in the business, but probably the wrong person to answer detailed technical questions. We have a botanist (Greenthumb) who is responsible for the growing ops, so I will ask him to provide the info.
Fundamentally though, The Haze Club was set up as a service to grow for people who either can't or don't want to grow their own. IF you have the knowledge, interest and time to do it yourself, this would be the way to go (why pay anyone else to do what you can do yourself?). But most people don't.