Try the STOCK Edge 540 no downloaded stuff. The characteristics in it may not be accurate but it is by far one of the hardest to hover and TR. It teaches you corrective inputs at a rate where you dont have a choice but to not think before you react. To me that is one if the building block fundamentals of learning to hover. Its stick imputs where you dont have to think about them. The next thing I found that particular plane helpful to do is when you get the hover down so that you can back the plane up to the ground and keep it a few inches off the ground, try to get yourself out of trouble with out crashing. When the plane falls off try to power up and out the where it wont twist in. I also think that the entry point to a hover takes some practice too. Getting the plane full verticle with out shooting to high. Just make sure on the Stock edge 540 you adjust your throws for 3D and THATS ALL the only mods I put in. If you get real good at that try to add some good stiff wind. Good Luck. Hope this helps.