Scupper/centerboard water in cockpit

[Niantic Mike]

There are a lot of topics on this already, however, I wanted to confirm that it is generally considered normal to have water coming up through the centerboard and scuppers into the cockpit when under higher power / heeled / have a larger crew.

I'm seeing water coming in when under power (6hp Nissan at around 50% and higher power) with 4 grown men in the boat (160-200lbs each). When power is reduced below ~50% we're mostly dry.

I resealed the seadog scuppers a month ago and also flipped the flaps around.

I've also found that putting a cork/rubber plug in the scupper where the fuel tank sits helps keep water from coming in there.