I would say try out an Avenger or an FL for the moderately overstable slot. Haven't thrown the SOLF but I've heard they're money $$. I find the ESP and Z Avenger to be more stable than the FL. I'm trying to get my Avengers workin for me right now, and I like what I see so far, but the FL was so predicable for me and so easy to hit the lines I wanted. But I'm not the best thrower of overstable plastic, so I need something like the FL in my bag since it's got managable HSS.
Having a Cobra, Storm, esp and x Buzzz, Gator, and a Roc all in your bag seems to be a little much. so I'd say
You're x Buzzz will just get flippier, and you could hit those lines with the cobra or storm, but preferably you would just throw a Buzzz and make it hit just about any line. The gator seems fine to keep in the bag. or keep them all in the bag depending on what courses you play. I know when I go to more wooded technical courses, I'll bring about 5 different mids
I like the Flash as your distance driver, but what do you use for max D in the wind? My flashes are so nose angle and wind sensitive that I usually have to throw my Surges or Pulses when the wind kicks up.