I have owned a MAK 2 Star since 2011. I upgraded to a new 2 Star in 2020. The first one was great, but the newer models are much improved. That said, I used to grill all the time on the older model that only had a flame zone on half of the grill. I always grilled at max temp and lid closed, and it always came out great from my perspective. But, I always used grill grates (which arte not recommended by MAK, they say it limits air flow). I had the MAK grilling grate as well, but never liked the results. I felt the original (not MAK) grill grates limited the amount of grease that would fall directly on the flame zone and limit flare ups. I have not grilled on the new dual flame zone MAK as I feel my gas grill with grill grates cooks good enough and takes less time to heat up.
My take on MAK not recommended grill grates is to discourage competition from their less than effective grate. The fact that they sell a griddle which I also own and blocks more air flow than grill grates is why I would still use my grill grates on at least half the grill.
I don't know if you own grill grates, but if you do I would use them on half the grill. If not, put directly on the lowest grate. I would raise temp to Max and run for at least a half hour to warm up the entire grill. Keep the lid closed as much as possible to maintain heat. You will understand when you see the temperature loss when you put the steaks on.
I can't wait to see the results! Your post made me realize I need to start grilling on my MAK again.