gemma4 QATs vs higher-bit regular quantizations?

I have enough RAM+VRAM to use gemma4 26b a4b up to q6_k quantizations w/ decent performance. Does anyone have any comparisons of the Q4_0 QATs (at 4-bits/wt) vs non-QATs at >4 bits/wt? (ex: q6_K)? KLD vs the originals wouldn't be appropriate IIUC. submitted by /u/Fun_Tangerine_1086 <a href="https://www.reddit.com/r/LocalLLaMA/comments/1u1pfen/gemma4_qat