Good point @martinheadon I think in TR or even zwift or wherever it’s easy to get too wrapped up in the exact numbers, when to a point they’re not that consequential.
The most important things are completion and consistency, as well as hitting the right energy systems. If you do the workouts, and continue them over months/years, you will get fast. If doing them outside causes you to not be able to hit the exact power number as precisely but the intent is there and you’re doing them to the best of your abilities, it’s probably not a big deal and that’s not your limiter in making you faster and stronger.