After many days of crashing into the canyon walls only to run out of time at the end, I found some real help: YouTube. There are a couple of posted videos that show the whole trip through the canyons that are done flying full speed. Once I had a model to use plus knowing what was ahead in the canyons, it went quickly! Try this if you are struggling. There are 40 to 60 Blazing Angels videos posted on YouTube.