I'll be at the Sanya PSB early next week asking for a 30 day extension on my expiring L visa I got in HK nearly two months ago, early the day before expiry date. I'm assuming & pretty sure there will be no troubles but allowing myself a day to exit China if turned down at the window.
I know first hand an easy handful of people from different, but the main 6 countries, that Have extensions on their visa they got at different PSB offices IN China the past couple months.
I'm going to give it 30 more days before buying a 6 month visa through Shanghai agents that are now doing visas for many countries again, same as before the changes but at higher cost.
PM me if you want contact details for Shangagents.