can you please tell me if all three Ngineered blades are recommended for beginners to intermediate players?
For the J version:
What kind of fiber is inside and does it provide soft, medium hard or hard touch?
Is it made in Korea or China?
Is it suitable for spin oriented players and does it have enough power for an attack from med-distance?
Can you briefly compare it with KTS 570 blade?
And the last one, what is the material of the core?