So I'm in the process a building a rack, I ordered the tubs today, once they come in I will start building. I have a couple questions, the rack I'm building will using the below tubs (Iris CB70). I plan on doing four on one side and four on another side.

http://www.amazon.com/gp/product/B00...ls_o00_s00_i00

1) What would be the best way to run the flex watt? I'm going for belly heat with the least amount of wires. I have watched some you tube videos and it seem some people daisy chain? Any other ways?
2) I plan on using melamine for the construction, any concerns using this, like warping for example?