Hybrid String Builder Tool
Choose mains, crosses, and goal
Mains usually drive more of the feel, shape, and launch. Crosses usually tune the comfort window, firmness, and overall response. Build the pair you actually want to try, then use the report as your starting point.
This is a practical builder, not a lab model. Use it to get the setup direction and a sensible starting split, then adjust after the first hit if the bed feels too firm, too lively, or not pocketing enough.