Not sure if you're deliberately trying to sound condescending, or what you're trying to prove, but the probability is the same regardless of how many...
just out of curiosity, how do you go about doing more than one insertion? do you have a general strategy to try and find the most cancelations or do...
If there's a flipped edge, you will need to flip that edge along with the buffer piece at the end. You can use M' U' M' U' M' U2 M U' M U' M U2 or R'...