Hi everyone - I am wrestling with some of the same issues others are seeing with ERG mode and unreliable resistance.
I am on a Kickr Snap 2017. I noticed the following little gem on their support site.
This says spindown no longer works on the 2017 Snap (although it does on prior versions) and that the old method of resistance trial and error is the only way to get accurate power from the unit.
It suggests any of us with a Wahoo Snap 2017 are wasting our time using the spindown capability in Zwift…does anyone else have a view or experience with this please?