Review round 8 (GPT-6 Astra xhigh): --delay paused upstream reads, so busy
streams saw 30-60 ms instead of 30. Verified locally: 60-62 ms round trip
with 30 ms each way under load. No saved result used --delay.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>