Starting camera…
Your call on centering:
Connect to your Supabase project. Use the Project URL and the publishable (anon) key, never the secret / service_role key.
Sign in with the account you created in Supabase.
Scans the front of each copy and shows the highest PSA grade its centering allows (55/45 for a 10, 60/40 for a 9, 65/35 for an 8 …). Check backs later from the stack view.