Congrats on your grow.
However, I am not sure I would call it cheap. You used 420 watts of light. I can pretty much assure you that your harvest would have been 2-3 times more had that 420 watts been HPS light instead of CFLs. You could have probably also purchased a 400W HPS for what the CFLs cost. Do think about stepping up to a 400W for your next grow. You truly will be amazed. The HPS is going to put out about twice as much light as the CFLs for the same wattage. And instead of an ounce or two, you can have 4-5 (or more)