Originally Posted by
Rivet gun
A swept wing tends to stall outboard first unless it has clever design features to prevent it
(Aerodynamics for Naval Aviators, 1965, p.78)
A straight rectangular wing with no washout stalls inboard first
https://www.youtube.com/watch?v=ECTCVgiBHjA
The RV7 is a homebuilt. As built this aircraft could never be certified. Most likely stall strips fitted to the inboard section of the leading edge would be used to trip the airflow and ensure a progressive root to tip stall sequence.