Interesting. My first 5-6 indoor grows (granted about 15 years ago) were with over 400 watts of flourescent. As soon as I started using 400 watts of HID the difference was amazing. Then, about 3 years ago my buddy decided to go cheap and was using CFL, not sure exact watts but a lot (around 15 bulbs all over the plant). He was using clones from me and getting nowhere near the same buds. He is now using a 400 watt MH and HPS and the difference is amazing, once again.
Maybe light meters are worthless and regardless of what they say you really are getting HID penetration from your same wattage of cfl....