Mohawk is not very good indicator of closed/open hips. For Mohawk you don't really need to put feet your feet 180 degrees; all you need is around 130 degrees, but I have seen even as little as 90 degrees would do. It is chocktaws that are more accurate indicator of open/closed hips. Or spread eagles, or Ina Bauer. If you can do any of those without really working on it hard first, you have open hips. If you can't do those without working on it, there are two options: either you have closed hips, or you have open hips but your muscles have not been stretched and they got shortened as you got older. If it is the latter, when you put a bit of work in, you will have no problems with those elements. Those who have naturally closed hips, they have to put in A LOT of work and those elements will still not be very good. It might work eventually (after really a lot of work on it) but the turn out might be more from knees, which will be very unhealthy for the knees).