For each of 5-10ms, I did the following just now and got no different results:
Set 160mmHg through 1.3psi and 0RPM through 800RPM to the current value.
Saved the map as a new map name (5ms.s20, etc).
Downloaded to ECU
Ignition off for 30 seconds
Ignition on, fuel pump primes and stops
Upload from ECU
Check values in fuel map, always was as expected
100% TPS, crank car again to flush fuel out of cyls supposedly
Start over again with new values