Give it a shot on a higher age (difficulty), the second easiest age (Count) is already a big step up for the climb.
That’s fair, and you’re right that it should hold up inside a single age instead of leaning on the higher ones to fix it. The climb ramps harder than the dive does and that’s on me, I built the dive first and the ascent came together late. Making that curve consistent within each age is going on the patch list, thanks for pushing on it :)