As you said your up times aren't to good so thats defiantly something to work on. Yours gear while high ilvl has way to much haste on it so if your able to swap that to say crit or vers you will see a big difference. As far as leggos go even if you have a resto one that has good stats for feral i would wear it. The agi on it will be better then other pieces.
For weak auras i use
http://fluiddruid.net/forum/viewtopic.php?f=11&t=5034 it helps alot i find.
For log analysis wowanalyzer is good but
http://clawnalyst.nimos.ws/ is one that's tailor for feral dps.
I am also a mythic raider although i am only 3/9 hopefully 4/9 this weekend.