Flying Monoline is waaay diferent. I tried it in high school. It's difficult to balance the force of twisting the line with the resistance of the control surfaces(there's a spring inside the cam mount).
I did manage to get in several flights before breaking up an airplane. I gave up. It does work better for speedflying. One line has less drag than two.
I've helped several kids and adults learn to fly. With a couple of trys they could all do level flight in just 2 or 3 flights.
The big problem there is that moving the hand an arm in sync with the plane because you can get the same movement with both hand movement and arm movement.
The problem comes from the controls responding to moving your arm relative to the plane and/or using just the wrist to move the controls, or both together.
Even with help I had trouble showing them how you can start a loop with just arm movement, sort of leading the plane. BUT it was tougher to learn that you had to add some
arm movement to follow the plane while you were bending the wrist to move the elevator. ds Otherwise, the plane would neutralize the control as it caught up with the hand motion.
That's why, if one tries to teach someone it really helps to demonstrate with a dry run that it's easiest to learn that when the plane goes "over the top" of a loop the pilot has to use
both arm and hand to keep the elevator up to complete a loop.
Like ther sports, once you learn how to do the basic moves it's something that never goes away.