Does anyone have personal experience with KDE motors? I have two sets of four; one set each of two sizes. The larger size seems to work fine, but the smaller size, 2315 have serious vibration issues. Even balancing them the best I can with the cell phone method I can't get them precise enough for my gimbal to stabilize or to get jello-free video. Of the four, only one didn't require balancing. The other three have varying degrees of nastiness.
I'm disappointed. I expected what the marketing info said I would get, a precision-balanced motor that I wouldn't have to screw around with.
However, before I initiate a return and disable my aircraft for an indeterminate amount of time, I would like to see if my expectation is realistic. So I ask the community, What is your experience with KDE motors?
Thanks much for any info!