Xert is more flexible than a number to chase down from week to week.
Your XSS goal for each day is actually a range beginning with a deficit/surplus number (relative to Noon position of the needle) compared to what you have done in recent past on same day of the week.
The ATP slider happens to work backwards from your TED. If that date falls on a Monday, then the week-to-week table will match. But the point is it doesn’t matter. If your TED falls on a Wed the slider shows estimated hours/week Wed to Wed so you can drag the slider and note projected changes moving forward. However, you never have to close an hourly or XSS deficit gap by a particular day of the week. While many of us do that by habit it’s the rolling weighted average that matters. As long as the Training Pacer needle is pointing up between 11am-1pm position you are doing fine.
The Planner Weekly Stats provide a means to track your week-to-week changes with a traditional Mon-Sun tally. XATA, however, is continuously analyzing your activities hour by hour and day to day, predicting form changes based upon strain intensities of your activities and gauging your XSS requirement to meet your current IR setting.
The Pacer Needle reflects a weighted moving average XSS over the last 7 days. It is not based on a start/end day of the week. Day to day variability depends on how you distribute your training load each week. If you establish a weekly pattern, XATA will reflect that. I.e., advice today considers same day of week in recent past. However, you are free to mix things up as your schedule allows or as your needs change. For example, more or less time to train today or take an extra rest day or go with some shorter sessions this week with a long ride on the weekend. Or as you wish to do – ride some high intensity once a week while in Base phase. XATA will adapt to whatever you decide to do.
As far as using the Planner, @me96kka’s example is a good one. Also see this post –
Ad rest for regular "free" outdoors workout - #6 by ChopStick
This section of the Academy I3 video explains how deficit/surplus and form work with the Planner and how the Planner is designed to be used as a what-if-I-do-this tool.
Episode I3 - Mastering Xert - Improve - The Adaptive Training Advisor - YouTube