Please stop posting the same again and again.
>What can I do to help improve results?
Not much unless you have a lot captchas for the captcha type with correct answers and use the SDK with it.
>What are the best settings?
The default once
>How do I use the SDK?
click the SDK button and play with it ;P
Yeah @Mitch, don't take it personal. I've been smacked by @sven, and pretty much everybody has gotten one smack. It always happens when we do or say something kind of dumb...like posting the same question in two or more different threads.
Everyone helps out here. Pretty much every single question gets answered. Just remember that a lot of people are in the Euro timezone, so evening questions for the guys in the states might not get answered until the next day.
Since I joined the forum when it started in August, there has been an update every day. It would be impossible to create a manual as it would be outdated within a week. But I do think a couple new videos would be helpful to all the new faces.
Until that happens, always try to search first, then read as much as you can, and then ask when you hit a wall. We're all here to help.