So far my experience with HTG Supply has been great!! I have orderd a total of 3 differnt Sodium lights from them for 2 differnt people including myself. Its a great buy as far as price goes. Coustomer service is great. We had a problem with a light bulb and they sent us a new one right away. I love HTG.. I know nothing about the nuts and stuff but as long as they are name brand you can't go wrong. Good luck!!
P.S. I have some experience with Grow Bags and theres nothing wrong with them. They work fine but they arent as sturdy or easy to handle as pots are.