Tunggak Semi At The Sorsoran ? Hmmm

, I know that the tunggak semi is an irregular shaped layers at the sorsoran but i dunno if this one exactly qualifies as tunggak semi coz' it's too short dont you think?
Attached here is a pics of a keris Sabuk Intan with the pamor tunggak semi (or at least that is what i've been informed

).