Ypu. If you want to spend the time balanceing, go right ahead. But even if you do, there's no need to get anal about it.

Case-in-point...

The Top Flite balancer is a very good one - it's very accurate and easy to use.

A few years ago I used to only smoke in my workshop, so often times I would go down there for a smoke even though I had no projects to work on. To kill the time while I was happily smoking away, I started to balance a prop - more just for fun and for something to do while I was sitting there.

And something I discovered was - Once the prop was (according to the balancer) PERFECTLY balanced, you could rotate the prop inside its holder and it would no longer hold a perfect balance.

So my advise is, if you want to do it, by all means, have at it. But don't feel that you can't fly your new trainer because you don't have a prop balancer.

BTW, I balanced that prop about 6 years ago, and that's the last time I used a balancer.