Qwen 3.8 FN quant compares 15% better than GSQ RCO; IQ_3S GSQ RCO nets 99.0% of BF16 performance across 12 benchmarks

Unsloth has posted about their UD v3.1 quant for Qwen3.8 FN on X saying their new quant is 15% better than GSQ RCO as the almost same file size. But the takeaway from the post for me and many other how are using...