No, you do not adjust the trim to level the swash. You will need a computer programmable radio that allows you to adjust the total servo travel for each channel. It is called ATV or travel adjust. You are adjusting where the servo stops at the end of its travel.
Are you still flying the 3G?. I have a set of 700 night blades I can sell you, just need a charger which you can get from Hobby king.