Hi, Did you note the airspeed? Have accurate is your ASI?
It seems to me that as well as CG issues you may be taking off too slow and your nodding behavior is an insipient stall. Why are out taking off at 75% power? How do you know it's 75%? I think you are lucky not to have crashed, you really need to double check CG, speeds etc before you go again. Pete -- Sent from my Android phone with K-9 Mail. Please excuse my brevity.
