Marie, the bromated aspect is great, but Kyrol, as you're aware, absorbs more water, and higher hydration doughs tend to brown slower, so if you go close to the absorption value (most likely around 65%), then your bake time will increase and you'll lose any benefit that you'll be getting from the bromate.
I would treat it the way I treat All Trumps, which has a similar protein profile.
66% Kyrol
33% AP
62% hydration