Sabrina and her family had been doing Tai Chi first as they are fast learners making some of the teachers to think that they are prodigies and had them learn one on one rather than as a group making Sabrina to accept it as one on one is a rather better as they have more training time and more time to fix their mistakes in the techniques to make them better more mastered. The whole summer learning Tai Chi before they turned back time to redo the summer to learn Tae Kwon Do which they also were called prodigies in as well making Sabrina to wonder why her and her family is learning so fast and had found out that the limits of their minds have vanished once their DWFs have been unlocked as their learning capacity had increase to let them learn more and quicker as well, too.
Sabrina had warned Dumbledore about their 'new' learning capacity making him to prepare the teachers, so they are warned ahead of time and Sabrina had tried a new technique to use with her 'new' found Chis which had allowed her to shrink her size to that of a grade-school girl making her family shocked that she had done a new technique by herself which she is planning to write down with other Tai Chi techniques as well as she is planning to mark them as a family techniques in the future as she has learned about family Tai Chi Martial Arts making her to think of doing the same thing as well.
Sabrina has been wondering how she feels being a child again, but she never had a normal childhood, so she just left it and continued to do her Tai Chi training with her other training as well, too. Sword Arts was completely different as they never knew what to expect and the way the teachers had them going proves them right as they had to have two summers of Sword Arts just to pass the mastery of it and allow to own one as well, too. Sabrina knows that Karate is completely different from Tae Kwon Do and they were called prodigies again in it making Sabrina to wonder if they can enter tournaments for this stuff.
Kung Fu, don't get Sabrina start as she has just had enough of the rapid moves she had to do to master that fighting style as she doesn't want to hear about Kung Fu ever again. To walk silently without anyone hearing them was something that Sabrina doesn't know about and she went straight to an expert that she has regret as he had them learning how by killing people which was not O.K with her thank you ever much. For four summers, they had to do the same training making them to really regret it as they had never been so tired before in their whole life.
They can't even tell if one of them is behind or not, so Sabrina had to teach them how to sense making it much more easier on them as they had sensed their magic, chi and DWFs making them to wonder if they can sense other things as well, too. Sirius, Remus and the Tonks had a hard time hearing them as they move so silently making them to wonder what they have been learning all summer. Sabrina knows that Voldemort won't stop until she is dead may she be neutral, light or dark and she doesn't like it, so she had asked Remus, the Tonks and Sirius to help them with their training making them happy to help out.