If you want the course to feel like the course then you have to set it at 100%.
I rode AdZ with it set to 100% and it felt fuck all like riding it in real life. YMMV.
It did get better when I worked out how it responds to gradient changes. Definitely helps having a lower gear.
@hippy started
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If you want the course to feel like the course then you have to set it at 100%.