AFTERMARKET Propellers for DJI Spark! How good are they?

These aftermarket DJI Spark Props, and Propeller blades for the DJI Spark Drone work good in this review; however, they are louder. They are available from Amazon https://amzn.to/2TZnaGZ They are less expensive than DJI Blades and I always have extra blades on hand because I have already crashed my Spark Drone a bunch of times and broken my DJI blades too. So to have a second set of blades at lower price is a plus. I found that the blades flew just as good as the stock and that it is not necessary to replace all the blades at the same time. Meaning that these blades are in balance with the DJI stock blades. I do feel that these blades had a high pitched hissing sound. I tried to find why but the blades look the same. It may be because the blades are a little bit stiffer than the stock. On this channel, I do new Drone Quadcopter, Camera & accessories reviews, High Tech technical advice, tips tricks and innovative Ideas. If there's a video you want me to make, send me an email at tommydrone55@gmail.com I'd love to chat and meet you. Friend me on Facebook @ www.facebook.com/tommydrone5 where I share other things drone and camera related. Or just stop by and say hi. Visit me on twitter too @ www.twitter.com/tommydrone