You've just had a lucky escape - If you're riding at a level where you needed 203 mm rotors, perhaps it's time to take a good look at those forks and hubs ?
Do you really want the front wheel dropping out ? Or the lugs snapping off those forks? Or worse .
Start by checking what size rotors those forks are rated at . A quick check of my fleet - the bikes with suicide forks have 160 mm rotors. Anything with 180 mm or higher has through axles and more than 34 mm stanchions. In fact, the 32 mm fox factory forks on my daughters trance are only rated to 180 mm - in their time, they were top of the range competition suspension, yet that bike manages with 160 mm rotors and is still capable of serious braking ( admittedly it only has 26" wheels , and weighs 12 kg)
I recently upgraded the brakes on my levo sl to 4 pot xt's , at the time I considered replacing the stock 200 mm rotors with something bigger, but even my uprated fox 36 forks were only capable of running 203 mm - that's serious braking force!
That rotor you are using is the same as my sons giant reign advanced - he has fox 38 mm forks that retail for $2000 .