Looks like a good sauce, though anything with chipotle in it looks good to me.
Do you have the point cut or the flat cut? It would work with the flat but like burnt ends, comes out better using the point.
Hope your smoke goes well and you love them even half as much as I do.
My packer has about 4 more days (I lost count
) until it is ready to be smoked and I'm already looking forward to making some pastrami bites out of some of it.