Since Manx cats have a double coat, they need to be brushed more often. I brush our big boy at least once a day. Does your Manx kitty enjoy being brushed? It took some patience, but now our Gabe comes running when I say "Brushing!!".
No, Sandra does not like to be brushed, although i have found some gloves with soft bumps on them that she lets me use to brush off hair with from her fur.