Searching for difficulty landmark

[ulty (Brent)]

Not a complete answer, but maybe some insight:

TP estimates

Great question! Matching your training status stars to the workout difficulty diamonds is how XATA used to function, and I still find it a helpful rule-of-thumb. If you’re cruising through workouts rated well above your current star level, it might be worth checking if your signature is understated or try and push for a breakthrough. Some athletes are also able to mentally suffer more than others…. I’m not the most mentally resilient rider myself. I think I quit on myself the last time I tried …

“The XSSR (XSS Rate) preference determines how much strain gets packed into the time you have available. The default is 100 XSS/hour, which typically translates to a max difficulty of about 3.5 - 4.0 diamonds. But you can scale this up or down depending on how hard you want your sessions to feel or how much time you have.“