When Should We Use Variabilities to Change Training?

There are days that's only that's been used, the landing feature. It might not fall high on the rank order as we're all presenting it, but it certainly can be very powerful. Part of the art in the interpretation is knowing when it's giving you a signal to adjust. Maybe we can put some perometers that marko annotate and let you let take the lead on this,. cause you've got the most experience.