Denwood,
Feel free to run your tires soft, but you will wear the outside/inside edges prematurely. I had 215/50 R17 Bridgestone Ecopias as my last set on the 2015 and tire wear was even with at least 44 psi (usually 46 to 48). I have 215/50 R17 DriveGuard run flats on the 2019 and generally run them at 46 to 48 psi to keep them from building up too much heat. Tire wear after almost 15,000 miles is even across the tread.
Feel free to run your tires soft, but you will wear the outside/inside edges prematurely. I had 215/50 R17 Bridgestone Ecopias as my last set on the 2015 and tire wear was even with at least 44 psi (usually 46 to 48). I have 215/50 R17 DriveGuard run flats on the 2019 and generally run them at 46 to 48 psi to keep them from building up too much heat. Tire wear after almost 15,000 miles is even across the tread.