Had a set of 7" Reverb arms and broke my 5" reverb so decided to have a little fun with a light LR build. build weight w/o battery/gopro is sitting around 400g. 10min on a 1300 5s and similar with a 1050 6s. Designed a gps mount for the BN-880 to fit the back but currently planning on designing a new one that will be placed inbetween arms level with body since I found that it fits perfectly with frame edge in diamond orientation, will update when I get a chance to finish that part. Just started playing with INav but have it flying well with Position hold and a few other modes waiting to test when Im not flying with a giant lake in my backyard and have RTH fail. If your wondering I have crashed 4 different quads into the lake all recovered and still work except for one reverb with a session 5 sitting on the bottom within 30 yards of boathouse....had some brand new t-motor f40s that claim to be waterproof, I I will be looking for when the water warms up and submitting a claim to t-motor if I find the quad and the motors dont work :P