I am looking to get more into studio based photography using monolights so I have a question in regards to power. I am looking to purchase a four light set up but I am not sure what I need in regards to power. I want to able to scale and not have to upgrade down the road. I am looking at the Bowens Gemini Pro series which leads me to my question. Does it make better sense to buy 4 x 1000w monolights or a mix between 250, 500, 750, and 1000. Obviously I do not need 4000w for studio work however the 1000w heads allow the power to be adjusted from 15w to 1000w. Personally I think this gives me a greater range of options. I might not need the power but I have it if I did need it, I cant get more power out of a 250w unit but can get less power out of a 1000w unit. I am asking if my thinking makes sense and is sound. The price difference between the 500w and 1000w units is about $300, so for me it is worth it economically. Just making sure it is sound technically. Any input would be great.