Ashley, the pic you post is CT X HM, which i have proved 1yr ago, even longer Ray and bigger tail.
the topic i am talking about is MUM tail. not the so called 'half sun'. i do not even know who name them recently, i just got some pic from a chinese forum, the fallow who breed some awesome fighters.
there are few mum tail i accidently got from my PURE HM pairs. its defnetly not a x one.
many thanks!