I just redesigned my bakery with 3 doors as Lin77's (3/9) I will post result later. With fec's design, I earned 1800 serv per hour and, with that, I can serv Red Valvet Cake to half of them. For this design, I think I have to serv all 4 coins per serv food coz I have 18 ovens. Now I still have some RVC left so I will wait till it runs out and start checking. 6 doors design looks very interesting but I have no more gems for that. I wish I had.

In my opinion, if multi doors design works for BS, it means BS distributes customer to each door evenly while RS doesn't. I tried 2 doors design in RS and customer didn't walk in equally for each door.