did 3x30 @ 90% today, last 15min were a bit of a slog but we did it. this is a level 9.2 on trainer road. No way in heck I could routinely do this stuff, so I'm glad I'm doing 2 of these sweet spot sessions a week and building endurance around it. I don't want to go to level 10 sweet spot just yet, which for 2hrs would be 3x30 @ 92%, so this weekend I'll go 2.5hrs and do 4x30 @ 88%, somehow that seems easier in my brain, we'll see in practice lol