G'day, I sort of experienced something similar. I had more than 10 instructors for GFPT, however I did my test after about 30 or so hours. I think the difference was that the instructors I had knew where I was up to before I had each lesson and I ended up following the flying school's syllabus quite closely throughout my GFPT. Different instructors did pick on different aspects of my flying, as can be expected, but once I had done the lessons that made up the syllabus and had the required number of hours I was booked in for my test. They didn't waste my time and money doing the same thing over and over again despite having many different instructors.
Good move to switch schools. Your new school sounds much better and I hope your training goes smoothly from here on.
787