G'day to all from down under. I have a Sonic 25 trainer, it has an os max 25 motor (recommended size) onboard but it really struggles to get off the ground and climb. I am flying circuits by my self but am a bit worried about learning to take off the way it is. Is there anything I can do to get that little extra?

I am running 10% nitro and a 9x4 or 9x6 prop.

Thanks in advance

Prboz