the PK style was a bit slow to catch me as i loved the long flashy fins of the bettas. fast forward 6 long finned bettas (2 ct included) and i now prefer PK due to less tail issues. less biting, blown fins and fin rot are a major advantage for PKs ive had my 1st PK for 5 weeks and she's just beautiful and active.
i do tend to like longer fins but tail issues tend to be frustrating. i do very much like CTs once i find the perfect setup to maintain their fins but the right colours will trump tail type most of the time.
a recent pic of her