I've been trying to balance my new wood prop. I haven't the slightest clue how to do it, but i stuck it through a screwdriver shaft LOL and spun it . But sometimes it stops with one side down and sometimes it stops with the other side down . Any recommendations for a ghetto wood prop balancing?

The guy at the hobby store said that it should be fine and not to worry unless it vibrates way too much. I don't want to put on my backup prop to have it vibrate and break off or something.