In December 2025, delivered a unified, robust uniform bit sampling framework for DuplexChallenger to enable cryptographic sampling across field elements. Implemented core traits and integrated uniform sampling strategies with clear pathways for panicking vs. non-panicking behavior, and added a specialized uniform grinding flow to improve sampling uniformity under challenging conditions. Expanded field coverage by implementing UniformSamplingField for Monty31 and all small fields, enabling broad applicability across the codebase. Fixed sampling-edge regressions, refined the API to a single sample_value call with a PANIC_ON_REJECTION constant, and centralized error handling to replace prior panic-based paths. Cleaned up code and documentation to align with cargo clippy and rustfmt standards, and removed outdated grinding Challenger code to reduce maintenance burden.