Actually TAO schedule my pickup run like every 3 or 4 weeks once. The others are just normal steady state long runs. I actually find pickup run very siong for my current fitness. If done every week sure die. Once a month is ok for me.
My 10km not as fast you. But TAO has somehow set my economy run from 5:45 to 5:55. I really dread the day if it is 5:45. I know it is not easy pace, because at this pace, my HR is in a climbing trend right till the end. If it's not steady state, it is not an easy run. I don't know why suddenly it increase my economy pace to this zone 3 pace. I suspect the algorithm is trying to train me at race pace, and ignoring my current fitness.