So, would you recommend?
1 oz. Citra (15 min)
2 oz. Nelson Sauvin (0 min)
6 oz. Nelson Sauvin (4 days--dry hop)
Also, I'm thinking of switching the yeast to White Labs WLP001 (California Ale) to get better attenuation.
I think that would be too bitter and would move your Citra down to 0 min. You should keep your IBU under 30 total
And your attenuation isn't really affected by yeast choice if you use glucoamylase in the primary.