RCU Forums - Servo Question?

Hello, Im new to the forum. I am also newbee[:-]. I have read some of the post here and they have been great. I read blusaber, tgwolfwood1981,Helibat, & dfalcon have all suggested a servo swap with the hitec brand, which i may do. My question is : After flying me axe ( ok im still trying to hover) I find the swash plate tilting to one side. So much that I can not trim it back. I find if i power it off for some time and come back it returns to normal. Is this a problem any one else has had? Do i need to contact Heli-max. Would the servos be getting to hot? Also when this occurs i can touch the antenna and see the swash twich,(or move ) is that an issue? Ok had more than one question. I will than all in advance for the help or comments anyone can share with me :D Thank you all!!!