[Bug]: qwen3.8-27B q2ks is larger than unsloth's Q2KL

### Problem Description

https://huggingface.co/Intel/Qwen3.8-27B-q2ks-AutoRound

https://huggingface.co/unsloth/Qwen3.8-27B-GGUF/tree/main

### Reproduction Steps

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### Environment Information

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### Error Logs

```shell

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### Additional Context

_No response_

Start by comparing the linked Intel and Unsloth Qwen3.8-27B artifacts, then trace the q2ks generation path in this repository to determine why the resulting file is larger than Q2KL. Done means identifying a reproducible size difference and documenting or correcting its cause.

Written by the indexing model from the issue text.