I decided to make my own pastrami out of a 12 pound brisket after trim. Followed a recipe with 2tsp of curing salt, wet brined it for 4.5 days and then smoked till internal of 203. Came out amazing except it had a thin brown streak running down the point . Flat seemed fine. Is this a concern or is it same to eat. It’s almost like the cure didn’t take all the way through, and I’m not trying to end up with botulism.