Teaks > Ivy for obvious reasons. For Teaks use Juju's, Urns and Lumberjack clothing, Inferno Adze is optional but incrase overall xp. You can either bank at ape atoll or drop (low alch) at Tai Bwo Wannai. Ivy is for the weak.
LOLOLOL ROW increases number of instances a "rare-drop" is dropped. If you don't like ROW wear Berzerker ring/Tokkul-Zo and move on. You will get rare-drops still.
Optimus hasn't been released yet, it was a FPS fix. Probably all the new updates has changed something in the game-engine causing such a drop. Does this drop cause your to physically lag in RS as it did pre-FPS fix?
What Q said. But to add to "9. What are some current viable GP making methods?" At 95 slayer you can kill Ganodermics for good moneys at ~1.6m/hr (if not more). Can be done at 92. And for 8) you can get a swanky "whip vine" which is slightly better than a whip
If you attack each healer once so they begin attacking you and then you focus back on Jad. They do not heal Jad. Rune C'bow + Broad Bolts or Diamond (e) Polypore Staff Storm of Armadyl are all viable options to use.
I'm fairly certain others could point out my obvious flaws but some: I am a noob because I use wild pies for slayer. I am a noob because I still forget my magic seceteurs for farm runs. I am a noob because I do not have 80+ dung. I am a noob because I can't think of anymore reasons why.