

Continuing our research into the effects of progressive stringing, we carried out—together with Sergetti—a test focused on the Sergetti Stringing “custom” method. This system uses a string-by-string differentiated tension pattern, calculated according to the frame, the string type, and the desired reference tension, with the aim of optimizing the overall stringbed response.
The reference tension for the central strings is again set at 24 kg, but the Sergetti pattern requires a structured, non-trivial sequence of tensions: each string can have its own specific value, applied precisely throughout the installation. This makes the job more complex than standard stringing and calls for advanced technical skills.
Based on discussions with the Sergetti Stringing designers, the expected benefits are mainly a wider sweetspot and greater forgiveness on off-center hits, with a positive impact on precision and shot quality, especially when contact is not perfectly centered.
According to stated claims, both stringbed longevity and tension maintenance over time should be improved compared to standard solutions. By balancing tensions more coherently with stringbed geometry, the method is described as delivering substantially better tension holding, in some cases indicated as up to 2.5 times higher than traditional stringing.
Key advantages include increased comfort, improved on-court tolerance, and strong topspin performance, supported by more efficient string movement and return. Practically, limits relate to the complexity and longer installation time, as well as the possibility that tensions tend to equalize after several hours and that string life may be reduced under very intense, high-level use.
A particularly notable outcome of the Sergetti method is the overall uniformity of the stringbed. The effective (dynamic) tension is aligned with the nominal 24 kg reference, and stiffness deviations versus the center are limited, supporting a more homogeneous response.
Overall, the perceived increase in comfort and the sweetspot enlargement are consistent with the system’s goals. While a single, standardized way to quantify sweetspot is not universally established, the results position Sergetti Stringing as an advanced option for players seeking stringbed uniformity, forgiveness, and playability—at the cost of higher execution complexity.