This whoop was meant to be as light as possible without sacraficing durability. It has definitely lived up to my expectations. Indoor acro, racing, outdoor acro are all possible with this little guy. You can get the auw down to 18.5g by using biblades. I did not like the hq biblades though, they felt slippery. I need to try the new gemfan 1210 biblades though, they look like they might just work. I have beaten the heck out of this quad and I haven't broken anything yet. The only downside is that the reciever on the diamond f4 has awful range, it is enough for me, but I would like more. Angry don says there is an elrs version coming though so that would solve this problem. The tune is the prodject mockingbird 65mm 1s whoop tune which flies really good. Link to tune http://projectmockingbird.squarespace.com/pmb-setup-guides/pmb-brushless-emu . I can recommend this build for just about anyone, this quad is so much fun (the dog agrees).