I only showed this way to do it because when I have mentioned one piece covering and got a lot of questions about it, this is something I wouldn't do for my first covering job, I started out doing it like Ken showed. If you give it a try and mess it up you can cut it off at the trailing edge if you have ironed on the fillet completely across from end to end instead of just the little patches I use/showed. I had covered several planes before I started doing it this way. When I am teaching kit building and covering I don't teach this method to new students. I teach students to cover the control surfaces then glue the hinges in. After the plane is covered I will cut a strip and cover the gap{{IF NEEDED}} Covering the hinge gap isn't a must do thing for every plane or every pilot, I wouldn't think of doing it with a trainer and I almost never do it to planes like the 4*, the planes don't require it.
I almost never cover the gap on the rudder either. This plane is a Bridi Dirty Birdy pattern plane, 60 size, I have already covered the rudder and it will have a gap. I have zero artistic talent and want to try a paint splatter job for the first time so I don't have a lot of high hopes for the finished product but I will give it my all. I have been looking at how others have done the splatter job to get ideas, some I like and some I don't but the idea is there floating around in my head. I never know what the finished covering job is going to look like unless it's a scale of something. This one will be a surprise to me too!!