Firstly i would not hold the heli by your hand. People have hit themselves this way and have caused all sorts of damage. It is best to track the blades in a flying state (the blade flying). Not sure how good a pilot you are but if you can hover it well you can hover in front of you at eye level and see what blade is out of track. That would be the preferred way, but if you not confident in doing that then i would hold the heli down (with some weight) and adjust so the blades track at normal hover pitch. Once that is sorted then you can check the blades at a higher rpm and pitch. if they don't stay in track then you might have a bung set of blades, however it shouldn't cause to much of a problem if they are a little out. Depending on your flying id say a hover track is more important.