Yes, you have to be very careful with the rechromers you choose and make sure they understand that 'retained part detail' is a big consideration; with pot metal parts that is even more a consideration, but is true even with steel parts. If you are rechroming the 'pebbled' part of that taillight housing (that gets painted black?).. THAT would be a great concern, and since it's going to be painted, retaining the pebbling detail is much more important than removing all the pitting...