Yep, Nick has it right. Turn 4 you can use a stiffer plate. For flat a lot are using the ORC Super Soft, or the Associated .063.
Muddslidd has a pretty trick plate out now too with some adjustments built in so you can make it softer or stiffer with some slide screws.
For me I use Asso .063 no mater if I am on bank or flat. It just works.