While manufacturers claim rough surfaces enhance spin, technique is the primary factor for generating spin. Rough surfaces might offer a marginal benefit, but don't replace good technique.
If you're curious about whether those textured racket surfaces actually help with spin, this is for you. Ewan shares insights into what manufacturers claim and his own experiences testing different rackets. It's interesting to hear that technique is still the most important thing for spin, not just the racket surface. Might be worth considering if you're thinking about new gear.