I don't know what type of triggers you have but this whould go for a start.
There are (if my memory serves me) 16 different trigger settings.
The higher setting, the less risk for false triggering.
But also it may not trigger every hit when you roll.
Setting 1-5 is usually used for pads.
Then you have gain. You have to hit every drum and set the gain individually.
So, it's all about trial and error.
All this is clearly mentioned in the manual but I don't have it besides me right now.