Nah thats bollocks IO
Intial skill will be with you the rest of your life which is why 1-13 are so inportant in intial training.
You can stick someone on a bike 20 years after they have learned and they will still be able to ride it.
Its once dick head instructors go down the re training route that confusion rains.
Getting taught correctly the first time in a proper aircraft is the important factor.