Just following this comment up as a note-to-self: just as `kgwgk noted, the default gemma3:27B model has ID a418f5838eaf, which corresponds to 27b-it-q4_K_M. But the new gemma3:27B quantization-aware training (QAT) model being discussed is gemma3:27b-it-qat with ID 29eb0b9aeda3.