Am I misreading the table?

  Unsloth Q4_K_M

  PPL:       6.6053     KLD 99.9%: 0.5478     KLD mean: 0.0192

  bartowski Qwen_Q4_K_M

  PPL:       6.6097     KLD 99.9%: 0.5771     KLD mean: 0.0182

Barely noticeable drop in PPL; noticeable KLD drop (good, 5%); but worse KLD mean (bad, 5%).