This document presents a crosscheck of JVET-AP0082 (EE2-5.1: Counter-based Temporal Probability Initialization (CTPI)) for context model initialization in entropy coding. The CTPI method leverages statistical information collected from coding tree units (CTUs) across multiple qualified previously coded slices (QPCSs) to derive a more robust initialization probability. Compared to the conventional Temporal CABAC approach, which directly copies probabilities from a single reference slice, CTPI combines end-of-slice probabilities with accumulated symbol statistics to improve stability and adaptability. Experimental results on ECM-19.0 show marginal coding efficiency gains with negligible impact on encoding and decoding complexity, confirming the effectiveness of the proposed method.