I use 14k Phoenix Double Ended on m80 ballasts. I also use 20k Radiums Single Ended on m80 ballasts. I have a 10k Aquamedic on a frag tank. You are always welcome to come by and see anything that I am using. I also have some some that I can loan out for people to test out.
I do not supplement. I do not believe in the paradigm of "best of both worlds," both in reef lighting nor in real life. This did not work for Hannah Montana who neither had a normal kid life, nor a good pop career... needed to focus on one or the other. Hybrid cars are kinda the same... either get going with a full-out Tesla so that you can go fast, or get a 40-50 mpg gas car and save the maintenance and have better longevity. For me, I don't want to waste energy or bulbs on dusk/dawn when I can just add another halide and grow stuff even better. I also do not need, nor care for, the blue "dusk" look. I am all-in on the MH.