I'm doing this myself since...well today kinda curious to see what kind of results I'll get! I've gone from all CFL (in prior grows) to vegging with CFL & LED (cheap 225 LED blue panel) but now that my flowering HPS was delivered...I couldn't resist swapping the CFL's (1 X 125 watt + 1 X 45 watts) with the HPS (150 watter) and supplement that with the blue LED panel ...so far so good, knock on wood!