I discovered why the previous owner did not like the Innova and only tried to use it twice. It was assembled incorrectly and the
most shallow angle it would tilt to was about 60 degrees.
The tilt limiter was on the left side (right side of the picture).
The limiter pin is supposed to contact a pad to stop the tilt. The arm was on the wrong side and the pin was contacting the back of the pad. It let the the arm swing about 1 1/4 inches further than it is supposed to.
I moved the tilt limiter to the other side.
Now the limiter pin contacts the stop pad properly.
Fifteen degrees is the most shallow tilt setting it has. It doesn't look like much - almost horizontal, but it's plenty for me for now.
This is easy to use and easy to tilt back up to vertical, even from 85 degrees.