ive been wondering the same thing. looking to upgrade my t5HO soon. I really like all the bells and whistles that come with the sat + pro, but also like the finnex line. I just recently added a stingray to my 48 long 24 deep with my t5's and love the extra light and color the LEd's have made. now I want to go all LED. ive been tore between a satellite + pro, ray2, or planted +.