Bignasdy,
I get what you meant now. Did you glue a big piece of 1" triangle stock on the inside first, so the sheeting is tied some structure before you add the notch. I hope I don't have to rework that too.
With the Saito 1.00 in the stock position, I hope to get away with just opening up the bottom. I plan on opening up 1 clyinder on the fake engine and the bottom vents. I should have 2-1 for the airflow.