Has anyone had a chance to have a look at the new polarised training plans in TrainerRoad (sorry if this has already been discussed)? You have to enable access to them, as they're beta at the moment, rather than fully released, but once you have access, it seems you can use them in the same way as any other plan. Seems there's a 6 week base and an 8 week build at low, medium and high volumes.
To enable access, you need to check a box in Account -> Profile -> Early Access
As you described. Anything specific you want to know?
Looking at the 2 mid-volume plans - they differ from SSB and SPB plans in that there are only 4 rides per week (nothing on Wednesday). Threshold workouts on Tuesday and Saturday and a long (2-3hr) Z1 on Sunday (which I presume most will swap for a road ride and "adaptive training"® will take account of this). Very little VO2. Total hours per week under 6.5 for both 6 and 8 week mid-volume plans.
Although in theory they may suit audax/distance cyclists, I think I'll stick with the pyramidal plans for the time. I'm half way through SPB mid volume and it's going well - FTP up to 260 from 220 a few months ago and nailing all workouts including the ones I struggled with in the past at a lower FTP. Something is working!
My other thought is if I'm going to do a road workout on (e.g.) Sunday, do I
really want to stick to Z1 for the whole ride? Not much fun in that, and I can't really imagine dawdling up hills for the sake of it.
EDIT: TR have changed the polarised plans overnight. On both 6 & 8 week plans, regular VO2max sessions have now replaced the threshold ones on Tuesdays.