Did some test flights this weekend for my precision landing program(A detailed explanation of this project can be found here.). They were short due to the cold conditions and battery life but beneficial. I was able to attempt the landing four times. All attempts went well in that the Copter didn't crash and held its position using vision. Only one attempt succeeded. Two had to be aborted due to low battery and poorly secured landing mat. One missed the target. I think it was because of wind.
Next I plan to implement a more robust controls strategy which should increase accuracy.