Hi

I have a Raptor 50v2 w/OS50SX-H, and are experiencing some problems:

When I do a full power vertical climbout the RPM is increasing, and I want the RPM constant over the entire throttle range(1/4 stick to full stick). It sounds like overspeeding of some sort...?
My pitch curve in normal flight mode is -4,5,10. Hover at 1/2 stick.
Engine settings: Main needle: 1-1/4 turn. Idle needle: 20-30 deg. on the rich side. Engine has smooth transition with quick response and a steady idle.

After some full throttle circuits, I land and touch the backplate. I can hold the finger there as long as I want. Therefore, I have never beleived that the engine is running lean at the top end. But maybe I am wrong here... because somebody tells me that if RPM is increasing when doing climbouts, the engine is too lean...

But I´ve also been told that the OS50sx-h is so powerful in a R50(power-to-weight ratio is high) that you have to back off on the throttle curve at the top end(e.g. to 70% or so) to make the RPM stay the same.
I´ve ALSO been told that you should never fiddle with the throttle curve (only the pitch curve) to reduce top end RPM to the same as hover RPM.

This is where I am getting completely confused:

What to do? Engine mixture? Pitch? Throttle?

How do I determine what causes the problem? Are there any good procedures to follow in order to solve this confusing problem?
How can I eliminate whats NOT the cause? When the engine is overspeeding at the top of the climbout, what do I have to adjust to get it better?

And when setting up the helicopter; do you guys get the pitch curve right and then tune your engines to get the RPM right, or the opposite? What about the throttle endpoints? Whats first?

I really hope somebody can help me out here. I don´t wanna ruin my engine.

Thanks in advance

Best regards

Hans Jacob