Im in the same boat as Adanessa. Im putting 15k in FL and i know i should be doing a lot more. I am not sure how to post world of logs but we did raid on tuesday where i did about 20-22k on the trash, and only 14-15k on bosses. HELP! :(
Starting off w/ IS, MF, Star, until eclipse, then redotting, wrath, redot at end of eclipse, wrath until eclipse and reverse.
Your guild's logs are here: http://www.worldoflogs.com/guilds/28665/
Your gear, spec, etc all look fine. You can actually get hit capped at the cost of a tiny bit of mastery if you redo your reforging, which will benefit you in the long run, but it's not the root of your current problems. (To fix your reforging, go to wowreforge.com, load yourself up, set hit to "close to 1742" and hit optimize.)
Looking at your last Baleroc kill:
It looks like you're not casting starfall at first glance. But taking a closer look, you're definitely casting it, 4 times in a 4:42 fight, which is great. Except that not a single one of them did any damage. That suggests that you're using focus glyph but not standing close enough for it to work. Baleroc can be a good fight for glyph of focus, but only if you can ensure that you'll be in range. If you have to stand far back, then just lose the focus glyph for that fight.
The other thing that stands out for that fight is your dot uptime. It's pretty low for a stand and nuke single target fight. Dots should, as a minimum, have an uptime of over 90% for that fight. Your IS is just barely shy of that (89.9%) - not bad, but can definitely improve. Your MF/SnF times are a little worse though (86.3% combined) - that's pretty bad. If you use the Power Auras addon, I'd recommend setting up an aura to warn you when your dots have about 4s left on them. That gives you ample time to finish your current cast and get them refreshed before the last tick.
Apart from those 2 big things, it's just going to be a lot of little things adding up. Learn to reduce your movement, predict aoe/movement phases, look ahead a few casts to determine when the best time to use starfall, starsurge, dot refresh, etc would be. Try to time dot refreshes with when you have multiple SP buffs up (like, potion, trinkets, power torrent, etc).
Actually, ok, one other big thing I just saw is that you apparently do not have Balance Power Tracker (or you're not using it correctly). It looks like you're always casting an extra starfire every time you hit solar eclipse. With wrath, it's a little harder to tell from the log browser, but I'd bet you're doing the same thing for lunar eclipse and wrath. Balance Power Tracker will tell you when your current cast is going to proc eclipse, so that you can go directly into the right spell. The only time this breaks down is on fights where the target is very far away (nef and rag) and you're casting a spell with a travel time (wrath and starsurge).