@Bear It really depends on the person and what works for you. Quality isn't important in the long run, it's energy that's the most important. Good quality, yes, is nice, but honestly it differs. For some people quality means how well it works for them, and for some it's how the crystal was treated/physical quality. There's also no "right type", as I've said many times in this paragraph, it differs between people. If you can tell it works, then awesome! Sometimes it takes a little longer to tell and that's ok! And it's okay to ask questions so don't worry about it, that just ensures you'll be most efficient ^-^