LoRA adapter for Qwen/Qwen3-0.6B - the runs-on-a-4GB-laptop variant of the tutor. Installs the grade-band lock perfectly (0% mechanical band-fail on held-out) and beats base on every dimension, but wobbles on content under adversarial pushback (that's the 0.6B capacity ceiling; the 4B closes it on the same data).

Load exactly like the 4B card, swapping the base to Qwen/Qwen3-0.6B and the adapter to this repo.