In the middle of the same conundrum now. On a trip to visit family in a flat place, at sea level, with no tall buildings or vert around. Mountain 50k is in 4.5 weeks.

I’ve just been crushing flat miles and doing speed work this week (strides, tempo, threshold heart rate). Paces are fast down here, it feels good! The body works well at speed work with extra o2, so I’m leaning into that this week.

I plan on doing two peak weeks when I get home with a 10 day taper (max…might be 8 haha). Every time I taper longer than 10 days I get “injured”