Re the Twister, I should have said it was 'cyclic' pitch, not collective. The Ikarus is collective , much more docile and I can usually put it anywhere I want . I got it under the willow tree at the the bottom of the garden one day and actually managed to back it out and return to my hovering practice without any damage.
I was told hovering is the most difficult part of learning to fly these confounded things and in that I suppose I have got there. I am sorely tempted to just go roaring off and do a circuit but I think I should probably try to fully master 'nose inward' rather than tail inward before I do. I believe the secret of flying these things is 'practice, practice and more practice and I don't think you should have to concentrate to the same extent as a novice, in other words, one reactions should be second nature, like with aircraft.
This thing started out as a project, I just wanted to learn to do it for its own sake and found I had to completely re-wire my brain, I must say it has been quite a learning curve and I am rather pleased with myself that I have got this far. As for the Twister, I'm afraid it looks just a shadow of its former self as it has been battered to death and repaired and modified so many times.... but it still flies.
Who says 'you can't teach an old dog new tricks' eh?
The Ikarus also has a heading lock gyro on board which is a real boon to controlling it.