How do you calculate the percentage of fluency for your participants? I completed the Spanish tree in only 3 days, testing out of most of the lessons. Why do your calculations say I am only 10% fluent? Just wondering.
Having completed the tree lesson by lesson, my shield is at 56%. I don't know how fluent that makes me either.
The fluency shield seems to be one of the mysteries of the universe. It is also pretty much meaningless :) and not worth paying much attention to. My completed tree is fully gold and I am at 55%.