RE: Hanger 9 ARF PT-19 control line
Duane,
First, WELCOME BACK TO THE WORLD OF C/L!!!!!
I've been kinda following the thread and didn't have a whole lot to add that might be useful until now.
You're starting to get into aerobatics now, and a bit of EXPERIENCED (I hate saying "old fart") advice might be in order to help save one of your planes. Years ago (no, read that "decades ago") when I first learned CL aerobatics I was given a great way to NOT crash a plane when inverted, and you don't have to think the "up/down down/up" thing. The plane has a top and bottom, and I sometimes think of it that way, BUT the best way I've ever learned to fly and NOT break a plane is actually a simple turn of the wrist.
I'm going to assume you're right-handed. As you bring your plane over to inverted, simply follow it with your arm and turn your wrist/handle from vertical to horizontal, palm UP! If you get any kind of nervous/confused/disoriented while your plane is inverted, STOP RIGHT WHERE YOU ARE. DON'T MOVE!!! The plane will go past your arm which will pull on the "bottom/down" line, which will send the plane back over the top and into the upright position.
If you're left-handed (like I am), your palm is down when you bring your wrist/handle horizontal for inverted flight. Same effect.
Anyway, might help.
(Pics below are some of the planes I'm still flying - a couple are nearly 40 years old)
Dave