"Roger" wrote in message
...

He had nearly 100 hours hood time.


What is your source for that? The NTSB report says, "Within 100 days before
the accident, the pilot had completed about 50 percent of a formal
instrument training course." I see nothing about his total instrument time.



Had he been IFR it would have set off the alarms with the first
100 foot deviation.


There is no alarm for an altitude deviation and being off an assigned
altitude by just 100 feet isn't considered a deviation.