Tearing from the Middle of the Garment

What is the ruling if one tears the garment from the middle and not from the edge? Is it a hindrance?

For one's father and mother, it is a hindrance, and one must tear the edge. For other relatives, it is not a hindrance. It is customary to initially tear the edge of the garment even for other relatives.

Gemara Moed Katan, page 22b: "For all the deceased, if he wishes, he tears at the edge, if he wishes, he does not tear. For his father and mother, he tears. Rabbi Yehuda says: Any tearing that is not at the edge is merely a tear of emptiness. Rabbi Abahu says: What is the reason of Rabbi Yehuda? Because it is written: 'And he took hold of his garments and tore them into two pieces.' Is it not understood from 'tore them' that they were into two? Rather, they should appear torn into two." This means that for one's father and mother who have passed away, one is obligated to tear the edge of the garment. For other relatives, according to T"K, one does not need to tear the edge, but according to Rabbi Yehuda, one must tear the edge even for other relatives. Practically, Rambam and Shulchan Aruch ruled according to T"K that for other relatives it is not a hindrance, while Mordechai and Mahari"u wrote that the law follows Rabbi Yehuda. Rema wrote that the custom follows Mordechai. Aruch HaShulchan, section 11, writes: "And this raises a question, how can we rule according to a singular opinion towards stringency, and certainly the main law is like the first opinion. So ruled Rambam and Tur Shulchan Aruch, etc." This means that although the custom follows Rabbi Yehuda, it is from custom, but the main law is like T"K.