In my club it’s reserved for payed sessions with a trainer. Most session are too crowded, so it’s not convenient. Anyway I think it’s a bit overrated...
Different nationality different terminology. For instantaneous on this forum all strokes with topspin are called loops. For me a loop must have have...
Your actually not doing the same thing, Your subconscious is holding You back because of lack of confidence. That’s why you need equipment that suits...