I have recently been doing my Z2 training rides on a stretch of road with little interruption. This is very different to riding for say 2hrs avg Z2 power. Your legs feel different after the ride and aerobically you feel you have made some gains.
I actually think a lot of people do there their longer rides as ‘accumulated time rides’ rather than consistent duration and more to the point consistent pedalling.
A lot of coaches / literature harp on about consistent pressure on the pedals, pedalling on the downhills as well as up. A lot of people can handle bunch rides but cannot put out 200w for an hour on a trainer.
I would be interested in Fascat’s feedback and how important this type of training is.