Hi, I wanted a 6" build that would stand up to some serious freestyle maneuvers with lots of punch, this baby truly delivers with the 2407 2500Kv Efaws made by T-Motor. Have 6 builds, with different configurations flying the Efaws and they have yet to let me down. This build took some additional time because of the additional solder points using the leds on arms. With the Helio FC running a PID loop at 32K coupled with Butterflight the flying experience words cannot begin to describe. This frame has 4mm arms the version V4 just released has 5mm arms. The 4mm arms are relatively easy to break, however the flipside is they make for a lighter craft. Easy to replace if there is breakage. If you are in the market for a nice budget frame that has style, clean and strong 3K carbon fiber, one cannot go wrong with Iflight.