I just Googled my TV to find the perfect calibration. The only problem was that there were two completely different calibration settings out there, so I kind of had to just tweak to my preference. On a related note, sometimes when I'm drunk I like to put on some old, crappy horror movie, throw on the motion smooth on high and activate the fake 3D. Why? I don't know. Like I said, I'm usually drunk.
The Semi Official Blu-Ray Thread - Page 134
Using someone else's calibration can be inaccurate, but it's an interesting starting point. There can be subtle variations in each TV manufactured, and the ambient light levels in people's TV rooms will all be different.
By Sharpness 'off' I meant neutral, yes. You'd have to google what the neutral setting is on your particular LG model.
It's best not to eyeball sharpness. For a while I thought 5 was neutral on my Vizio, but it turns out it was 0 all along. It just takes a day or so for your eyes to adjust because you are so used to seeing the artificial artifacts that any amount of sharpness adds.