Darticus,
There was some speculation about the ability of a CX to do a loop. Mostly we're thinking it isn't going to work.
I did post that I have gotten mine upside down, but I can't say that it's repeatable to the point of being predictable. So I guess that makes my maneuver and accident? I know that I can get it vertical with the nose pointed straight up (or down or sideways). I suppose that given an unlimited supply of CX's I could figure out how to convert that move into something worth repeating. But I have pulled a couple of moves that made the heli look pretty good. Here's my routine. I was using stock body with very few mods - and I did have the lighweight flybar that I use.

Outside, when you have a calm spell, try this. Hover the heli at a couple of feet off the ground with the nose pointed in the direction you want to go. Then shove the right stick and the throttle stick forward to the max and watch the little bird rip across the yard. The secret is to add a bunch of throttle when you push that right stick. The gyroscopic effect seems to be nullified when you change the rpm of the flybar / upper rotor. When you have gone far enough, bring BOTH sticks back to center - gently. Your heli should have gained about 20 feet of altitude for every hundred feet it flew away. If all is well, land the heli and shut down the power and let it sit for a few seconds to catch its breath - honestly, the battery will see a significant improvement even if you don't disconnect the battery connector. Now repeat the flight described above, and when it's out about 70 feet and 20 feet up, steer into a LEFT turn with the left (rudder) stick and she'll make a wonderful long arc turn-around. Bring the left stick (rudder) back to straight - then reduce the forward and throttle to mid-range. It's pretty dramatic and will make you look like a pro. And I think that part of the trick is to turn left while accelerating. It's a gyroscopic thing. I don't know that I've ever tried the same thing while turning right. Somebody go try it and let me know.
NOTICE: If you get nervous as it takes off in fast-forward, don't just cut the throttle back or it will stick its nose into the dirt. And if you maintain full throttle and cut the forward stick it will go nose straight up, then fall out of the sky. Once you figure out the balance, you can hold the right stick full forward and control the altitude and direction with the throttle stick.
REMEMBER - Left Stick =Throttle = Altitude (and direction the nose points); Right Stick =Pitch (direction the heli flies) & Ground Speed .

I've worked with this maneuver a bunch and the body on my poor heli shows it. More tape than plastic! I'll gladly accept any input from anyone else on this subject. I know what works for me and I'm still working on the performance aspects of this little heli with only minor revisions to the original design. Yesterday I did what I described above and I went into a long left rudder turn, then added too much left aileron (right stick) and I actually inverted the heli. I have the scratches on the top cover of the aluminum flybar holder to prove it. No, it was not a good landing, but it hit the flybar hub so perfectly inverted that it knocked the outer shaft collar (below the swashplate) out of adjustment and didn't break any blades!

Is that what you are looking for?
Soloboss