This time I stacked haste as much as I could (this is also as it shows I should reforge here: Mr Robot)
Being the noob I am I am not to sure where to go from here.... Do I stay as I am or do I change some stats now? both put out "about" the same dps overall. With the BIG difference in stat weights from one plot to the other I am not sure what is best for me to do.
haste "stat weight" as computed by simulationcraft is extremely unreliable for elemental shaman (see this blog from Binkenstein on totemspot for some extra hindsight).
Basically, use the reforge that gives highest dps ("ignore" statweight), and if you want to know if it's worth reforging into haste or mastery (and how much), then do a "reforge plot" (usually between haste and mastery) and reforge to the "highest value" given on the graph.