While I do personally prefer the Futaba GY401, I have heard good things about the Logictech 2100t gyro.

However, I suspect that your problem is not a poorly behaving gyro. In a large collective maneuver like a hard climbout, you are creating large amounts of torque, and potentially bogging down the motor. With the sudden increase in torque demanding huge tail thrust, and the possible reduction in head speed lowering the tail's ability to create thrust, the tail is simply over tasked. It cannot create enough thrust, even at full deflection, to counter the torque created by the main rotor.
The best gyro in the world will not help this situation.
The common fix (barring any mechanical problems in the tail belt or linkage) is to change your throttle and pitch curves. Raise your throttle curve some, and lower your pitch curve some. That way you will hovering at a higher head speed with less pitch. Less pitch means that there is less torque for the tail to overcome. More head speed means that the tail has more RPM available to generate thrust.