Well, the trigger pushing back is a good indicator. As long as you have the "credit card" space between the sear rod and trigger when aired up, then the trigger is properly set up. I don't think the sear really matters much as long as it is properly spaced.
The biggest problem you have is the insistence on the single trigger frame and trying to get it to bounce like many other people. The biggest advantage of the double trigger is leverage and a linger pull. W8th double triggers, you can almost hold the trigger in the best spot where it it will fire, but reset itself. That is the reactive trigger and that skill does take practice. It is not generally something that happens when you pick up a new gun. Most of the people you see do what you are attempting to do, all have double triggers of some sort.