calebep, it's VERY important. An unbalanced prop can literally shake your plane apart, cause electronic failure, and ruin the engine itself.

All props should be checked, but the composite ones seldom need balancing. With either composite or wood props, here's my method:

Use your favorite balancer (I like the Dubro teeter balancer for small props) to determine the light blade. Spray a little clear poly-u on the front side of the blade until the prop hangs level. You can also spray the back of the light blade if necessary. Let dry and you're done.

CAUTION: If the prop swings down slowly and/or gently bumps the table, it's ok to balance. If it slams down or drops quickly, take it back where you bought it and exchange it.

I DO NOT recommend sanding a wooden prop to balance it. NEVER sand a composite prop. You can, however, use find sandpaper or a blade to scrape off a sharp leading or trailing edge. NEVER cut the blade length to balance it.

Dr.1