My kitten is 5 months old now and is dsh, but he has some non short hair qualities such as long fur growing between his toes. His tail fur is longer and fluffier than the rest of him, his ears are full of long fur and his coat is soft and fluffy rather than sleek and silky like other short hair cats I've had. So could he be part long hair? Or is he a medium hair? Here's some pics!