With hillclimb season well upon us, I decided that, although I'm over(racing)weight and underfit, I'm going to put a little bit of effort into a few events. I did Anaerobic Blasts on Zwift on Saturday night, which looks straightforward enough - just 6no 30s efforts, seemingly well-spaced, at 'only' 650W.
https://whatsonzwift.com/workouts/le-col-training-with-legends/fabian-cancellara-anaerobic-blasts
They're not short and sharp enough to warrant sim mode so I went erg and the first two felt okay... on the third and fourth, I got a bit of a cadence-dropping death spiral going on, and I dropped the target power on the last two down to 600W, which was just-about manageable.
I'm defending my club HC title on Thursday night -
I set a course record of 2:16 last year (540W), but that's going to be tough to match!