No you should definitely go with the 182. The halo's rocker is much more extreme than the domain's, making the 181s ski more like a 174 ski, give or take. Your domains ski like a ski that's about 174 as well due to the undersize/rocker. Go with 181s, you won't regret it.
If NS had an anus this thread would be pounding it.
Hello future me,
I had no expectations for you. So anything you have done is a plus for both of us. Good job!