Thanks everyone for the replies.
As I said before, please don’t consider my replies to be dismissive. I really value all the feedback I’ve gotten and am taking it onboard. I simply want to challenge ideas and work things out as a collective.
I’m scratching my head about the problem but do concede that my riding could be a lot more structured than it currently is. I’ve let that slip in recent months admittedly.
With that in mind, I’m going to quit the rest of my build phase and just ride my easy Z2 rides outside, until there’s some bad weather, and then I’ll take a week entirely off the bike.
Cheers