Are you new to CCPM 3D rc heli? I am beginner too which my first 3D rc heli being m120d01
I found that flight sim is a must for learning such a single blade CCPM 3D rc heli!!! Need to practice a lot before go for real rc heli. No shortcut at all. Otherwise, learning to flight become learning to repair and learning to pay!
My experience tells me that basically all the single blade CCPM 3D rc heli carry the same characteristic. Which is you need to keep controlling it from being unstable or off position. Of course different brand and different model will have different performance. Setup and turning is also important. A proper setup and turned rc heli gives you more stable feel and predictable response but hand off. You may found different between Flybar and Flybarless system.
I am beginner too and still play with palm size heli. Which is difficult to fly with my skill level in outdoor. I have a friend who own a 450 size and let me ask him where is their gathering place!!