Hi Andrew,
please find another update at the same link.
https://dl.dropboxusercontent.com/u/19452479/BlinkStickDotNetAmbi.zip
I´ve added some new “adjustment screws”.
- Colors
Define your colors for the option main_colors_only here (your desired
) - Pixel steps.
Increase the value to get a better performance for the color recognition.
Beside this the tool will now save your settings. It will also hide to the TNA area when starting the ambilight. Please take a look at the changelog (included in the ZIP file).
To have more then one LED, set the device to mode 3. It can be done with right click to the property grid. The hardware is limited to 8 LEDs in mirror mode. For more it should be software based but this will also slow down the ambilight. Maybe I will take a look into it later.
Feel free to play around with the new options 
