Well ...here is an update on my Simple Extra saga. I replaced the Black Widow with a Norvel .074, It was just too heavy to get an easy launch with the BW. It flew fine once up to speed, but just about to stall the first 10 seconds after launch.
So.....after hearing all the great things about how good the Norvel .074 was(on this forum) I ordered one. I learned I needed a glow driver for the plug and an electric starter to make it start. (after my first night of trying to make it start by hand). The break-in was not a problem.
I had a two channel radio system with only two servos in the plane. I changed the receiver to a three channel system from another plane. I put a Hobbico CS-12 micro servo near the tail for the elevator and changed the old elevator servo to operate throttle. A DuBro 2 oz tank was a perfect fit in the front of the plane.
My first flight was today and it was a different plane. The plane was 100 ft up in just a few seconds after launch and I had to power back some. The trim was just where I left it with the BW.There was some wind up high and that seemed to have an effect on it, but it flew like a .40 powered plane. The engine is smooth, quiet and has more than enough power.
I decided to bring it down after 14 minutes of flying. The wind was starting to pick up some and my landing wasn't the best but no harm done. I'm going to wait for calm air for the next flight.

Here are some pictures: