Thanks @Mikael_Eriksson, another good listen 
Interesting point about keeping the high intensity around 90%. As @sryke said in the Q’s thread, POL is often referenced as making the hard days really hard, so this is quite a contrast from that.
In the TR speciality triathlon plans I’ve found some of the workouts, such as Owens, to be too much intensity in the past. They’re do-able on a good day, but I think they edge towards being too much of a risk, especially close to a race. In the last few months I’ve felt my training has gone better by substituting workouts like Owens for workouts with slightly less intensity.