I’d say mid 150s is a safer bet for AeT. That is where you start to the first rise in Lactate. Especially when at 170 you shoot for the moon to 10mMol/L. What was your RPE at 170 and at 182?
No need to shift the graph. It takes a while (usually 1-3 min at low intensities and 6-9min for high intensities)for the lactate to diffuse and start to go down.