I have both, and I love the magnetic balancer for everything up to .61 size props. If anything, you can get too fanatical with it due to the sensitivity, but with practice you pretty much know when to quit as well. It rules for 1/2A props - with all my small high rpm props I spend the time to get them as close as I can. I once made the mistake of running a combat .049 on a test stand with new unbalanced prop in the mid-20's - once. Bad idea, not very kind to the poor engine at all, and I had to apologize to it before it would run again.

MJD