Those with the Smart Controller know the different options already out there. Which is a large peg with hole drilled, or a fixed ring that screws in. These add length to the bottom of the RC making it not fit properly into the hard cases. Unless you unscrew and re-screw them every time, which we all know is a hassle. I recently found some from tinyrigs.com which are a folding "D Ring" and add like no length to the bottom of the RC so that it still fits perfectly into my DJI Hard Case. The kit includes the pair of D Rings, a lanyard, and a screen cover slash shade... The shade though I wont be using as it doesnt have proper clearance for your thumbs and the joysticks