Make sure you properly size the motors and props for the build weight. motor manufacturers generally include a chart with thrust at various power levels. Take Pull(g) at 100% throttle and multiply by 4x, then divide by total build weight with battery, this gives you the thrust to weight ratio. You want better than 6:1 for responsive flight characteristics. Make sure you look at proper orientations/positions for control link receivers and vtx, carbon fiber tends to mess with signals.