I just got back into helo's. I used to fly gas powered years ago. I picked up a blade cp+ to get back into things. But I am having a
problem seting up the trim. As soon as I start to get lite it wants to pitch over counter clockwise. with full trim it wants to pitch. Is this
common to the cp+. I was going to lengthen the control rod to correct it, but I figured I would as for advise on here first.

Thanks for any idea's in advance.

Common? No, but possible that it is out of trim. It is really hard to trim a heli on the ground, ground effect, friction, and wind can play major roles in how it is going to react. I would have someone fly it and trim it if possible. You could also check to see if the swash plate is level.