The "I put everything away for the night" update.
I finally got it to trigger correctly using the feature built in, my trigger level **** is starting to have problems. Pulling it out makes it work.
My IPW with the idle oscillating from 725 to 775RPM are as follows:
1 3.4  3.6ms
2 3.4  3.6ms
3 3.6  3.8ms
4 3.6  3.8ms
5 3.4  3.6ms
6 3.6  3.8ms
Now to find out how much fuel that equates to and how much the engine is actually getting. I need to find flow numbers for my injectors at some point.
Archon, Sorry for not specifying earlier but the above graph is from somewhere out on the internet, stolen without permission. It does show what would be a perfect graph for my system (and yours too i suspect) but it'* not mine, or anywhere close to what mine shows.
Mine shows the 12V potential on the line, then a nice clean drop as the injector pulls. I've got a ~60V inductance spike that comes down very dirty. I'm not sure why it'* so knarly looking but I should get the answer out of one of these books at some point.
GM P/N: 17121296
AcDelco: 217307
