Well I cant speak for incandescent growing as ive never done it.Stubbornly stuck with my floros before changing to led.Hit some roadblocks on my journey,chinese plant stretchers etc.Tried my hand at cob growing,they grew well but I didnt like the intensity hot spots they seemed to create.Im much happier with my mono arrays,seems to give more even distribution of light with no concentrations,and much easier to tune spectrum.Much like my old floros but with higher intensity.Im not saying cobs are bad,they just arent a good fit for me.There isnt a one kind of light that fits all,and I hope there never will be.Just an old man rambling...carry on.