Although the Twist is marketed as a 3D plane, it's not really a 3D plane. It's just a fun fly plane with oversize control surfaces. Oversize controls surfaces do not automatically transform a sport plane into a 3D plane. Will a Twist hover? Sure! But just because a plane can hover doesn't mean it's a 3D plane. If that were true, then an
Eagle 2 would be a 3D plane, which it definitely isn't.
Now that you've figured out that the Twist is a poor 3D plane, you should get a real 3D profile that will truly hover, harrier, knife edge, spin, and tumble like a 3D plane is supposed to do.
You've already got a Saito 82 and an OS 55AX, which are great 3D engines.
If you don't want to build a kit, the
Sabre 47 ARF from Value Hobby is a pretty good 3D profile ARF that would be a perfect match to either of those engines. Here's a video of a
Sabre 47 ARF with an OS 55AX.
If you're willing to build a 3D profile kit, then there are a lot more choices available to replace the Twist with a true 3D plane.