So in this blog, i'm just going to go over some upgrades available for the v120d02s and my opinion on how they perform and if it would be worth it to get it or not. I got this idea from IntegrityHndywrk, but I also wanted to do this on my blog to give my ideas on how these different upgrades perform. All of these upgrades, I have used on my heli and tested them, so if you have any questions or recommendations, feel free to post anything!