I just bought a full set of spare props for my Solo and a 6mm shaft for my Du-Bro prop balancer for solo props.
To my surprise just about every prop I checked was spot on. only two of the eight props needed a little bit of weight. I used some small pieces of vinyl tape to correct the balance. Even the hubs appear to be in balance as well. no matter were I place the props they stay in that position. Kudo's to 3DR for making them right.
It cost me $450 to get 6 17.5" T-Motor CF props that balance that well for my large Hexacopter.
To my surprise just about every prop I checked was spot on. only two of the eight props needed a little bit of weight. I used some small pieces of vinyl tape to correct the balance. Even the hubs appear to be in balance as well. no matter were I place the props they stay in that position. Kudo's to 3DR for making them right.
It cost me $450 to get 6 17.5" T-Motor CF props that balance that well for my large Hexacopter.