it is not really arbitrary, it is a percentage of the maximum that trainer can generate as resistance. So it varies based upon that single specification. if the max wattage for a trainer is 1500 watts then 50% is 750 watts. So that is how to understand the difference.
I learned something new today. 
Thanks @skinner_ron !
Edit: That being saidā¦ In my opinion, itās still much less useful than SLOPE
1 Like
Agreed but maybe there us a edge case utilityā¦ I canāt think of one! 
To the OPs question, if you could filter by 2 stars or less, and then high + peak stress = 0 (I get this filter doesnāt exist), youād get exactly the types of workouts they were after, right?
True since the OP never wants to exceed LTP.
For that you can search the library for āpure enduranceā.
Or search for āfree ride enduranceā, pick a duration (60 min to 6 hours 
) and ride the workout in Slope mode, never exceeding LTP if that is your goal. Just like riding easy endurance outdoors.
Specificity filter just dropped. Iām going to see if that would do the trickā¦