Hi ya Rick! With the Blade CP's the horse bucking or "bobbing" you mention was attributed to the feathering shaft being too tight. Or sometimes the cold would affect it. Does the heli shake like that with the 1500 mAh battery too or just the 1100 mAh one?
Crash will most likely be responding quickly, he is the resident head setup expert for those. I may be completely wrong but I just assume the symptoms regardless of brand usually mean the same issue and fix. Have you tried checking the tightness of the blade grips? Is there a sticky spot on either one with the dogbone links removed? Lubrication may be all thats needed or adjustment of the 2 5.5mm nuts on the feathering shaft. Just my guess old friend......hope it helps.


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