I've really been liking my 6" Skoll v2 frame (4mm arms) so I decided to build a 7" with 5mm arms. I designed the rear antenna mount and motor wire holders/guards and printed them along with the stock parts in purple to go with the Xing motors. I'm getting 10-11 minutes of flight time just cruising around with a 2200mAh 5S pack. I just got a couple different sets of props to try out, I'm hoping to extend my flight time a little.