2x Haltech data log and map questions

[Invid]

I was poking around in the ECU on my car and found two things that look out of place to my untrained eye:

1.

There is a very noticable drop in ignition advance at 5000rpm (goes from 30 deg to -0.8 deg). Is this normal?

2.

This is a data log of the engine cruising at about 3000rpm. In the middle of the log there is a flat spot of the home and trigger. What would cause this, is this the sensor not picking up the signal? (it using the haltech sensor and rare earth magnets on the crank to generate the signal).

Thanks

[MorGo]

That negative spike on advance certainly is some error from tuner;just smooth it out.There could not be a reason for it.