Hey Casper! It is sometimes easier to get mire back spin with a thicker sponge as the ball soaks into it longer and then you get a bit more dwell time on the contact to create spin. I think the most important is finding what you personally like and feel comfortable with, because some people prefer less sponge and others thicker, it mainly comes down to testing it and seeing which works best for your style and the mix of attacking and defending you want to play. Hope that makes sense. Dan 🙂
Answer for sponge-thickness long pimples
