The general advice seems to be that most (75%?) runs should be at a slow (conversational) pace. I'm currently following what seems to be a standard weekly pattern of one short fast run, one at medium distance, medium pace and one long run making a total of 45k/week. None of this counts as slow/recovery because it's either too fast or too long.
Having been running for nine months now, I think it's OK to start running on consecutive days (with one rest day a week). If my recovery runs are 10k (which seems like a reasonable upper limit), that means I can fit in 30k of recovery running per week. However, for that to be 75% of my running, I would need to be doing 135k/week (and it would have to be so long, that it wouldn't count as recovery anyway).
Even if I base it on time instead of distance, I would have to spend around 13 hours/week on recovery.
Either way, it just doesn't fit. Have I missed something?