I seasoned the flat iron with my last bit of Wolfe Rub Bold and let marinate in the fridge for an hour or so. Took it out an hour before grilling to get to room temp and grilled it for 4 minutes per side, along with frozen corn on the cob.
Pulled the steak off to rest and grilled the shrimp for 5 minutes.
This was one of the better and super simple but extremely flavorful meals I've cooked in a while. The flat iron was like butter.