Pomskies should NEVER be shaved! They can be trimmed on their bottoms or "butt tuffs" and on their feet, but that is all that I have ever needed to do. I do nail care and brush them once a week. I love my Undercoat rake for plush coats and a slicker brush works just fine on a standard coat pomsky or to remove tangled hair on plush and wooly Coates.
**When your Pomsky is old enough to leave a collar on remember to brush out the hair underneath. With their double coats it tends to mat up under the collar. **