RV-7 single data point
The RV-7A project I bought had quick build wings. The flaps had about 3 degrees of twist and Van's was fine with that.
I wasn't, so we built a new set. Spent a lot of time leveling the table, being careful during assembly and the new ones ended up at about 0.3 degrees. I thought that was nearly perfect.
Locust Grove, GA
DA20-A1 "Princess Amelia" - gone home to Amelia Island
RV-7A Phase 2 (Honored to be Van's "Miss July" 2021)
RV-10 under construction at Synergy Air South