This is the 3" Pro version of the frame with the 12mm motor mount option. This frame required a bit of filing in order to fit the camera guard side plates.

I used titanium bolts everywhere possible (8mm in the arm to bottom plate connections and 6mm everywhere else) in an effort to save weight. I'm still over 250g by a bit and I don't know where to trim anymore. So the bolts, in my case, were probably a waste of money. I can get in under 250g if I run a 3s 650mAh battery, but it's way better on the 4s 850mAh packs.

The build is pretty tight even at the max top plate height setting. I had to rotate the FC and ESC 90deg clockwise, otherwise their 8 pin plug sockets interfered with the Split Mini stack. The build would have been way easier with a 25mm stack height allowance and 5mm more space between the front and rear stacks. I'm still very happy with the frame.

I'm flying it on Betaflight 3.5 stock PIDs and filter settings with dynamic filtering, airmode, and anti-gravity turned on. It's perfectly smooth, fast, and has zero issues. I could not believe how nicely it flew with zero tuning. I'm probably just going to leave it like this aside from some rate tweaking.