Maybe I'll start at 5. I've had the grinder for a at least 4 months. I've been grinding between 4 and 6. My thinking was being that it's a very light roast, to grind finer to increase extraction.Wow, awesome!
I think 202°F is a good temp to start with. If after trying that, it needs a boost in acidity/punch to make things more interesting, you can go up a few degrees. Sometimes light roast washed coffees even need 210°-212°F to extract well.
4 on the Ode 2 sounds pretty fine. Did you just get that grinder? Have you tried that grind level before?
High-grown African coffees usually produce a lot of fines, so normally need to be ground a bit coarser.
What volume of coffee are you brewing? Do you use a high or low agitation method?
For this I'll probably brew 20 grams with 320 ml for a 16:1 ratio and adjust from there. I probably use low agitation. I try not to pour from high up and l never stir or shake like some YouTube videos do.