...Find large field on a non windy day. and keep the A/C low 20-60 feet AGL. Your first couple of flights should BNF(no camera)
Try to keep the A/C over a target area(point camera at full nadir and try to gently compensate for the wind by correcting the A/C movement
Learn how every action on the sticks requires a equal reaction (yaw left needs some yaw right to cancel the movement) these are very shuttle movements. The more you move these sticks the harder the A/C will be to control.(these A/C are very fast in manual mode and you can easily wind up with a “bucking bronco” if you overwork the sticks.
And finally always be prepared to switch into GPS mode. There is always somethings we can not control (gust of wind, incoming wildlife, etc.) be prepared to cancel your manual training if anything does not appear safe. A gust of wind can easily move your A/C 30-50 feet very quickly if you can’t over compensate fast enough. Be prepared to flip the switch...
Brief anecdote:
When I wanted to start practicing non-gps flight I didn't really like the idea of using the Typhoon H, at the risk of getting disoriented and send it on a one-way trip on the opposite direction with it's non-gps-restricted speed. Also I wanted to learn to fly while watching at the aircraft, and not at the camera feed.
So I decided to look for an alternative, inexpensive, similarly shaped non-gps unit to practice. And I soon found the MJX X600.
At first I was scared to rise the toy-grade UAVs over a few meters high, fearing that a sudden gust of wind would send it into a neighboring house or street. But after a few months of practice
(both indoors and outdoors) I began to see some improvements.
I began to get more confident, until I felt confident enough to send the small hexa far away until I wouln't be able to tell which way it was facing just by looking at it; I began to get the "feel" of which way the aircraft was facing by looking at the trajectory with my input; no need for lights, stickers or other visual cues other than the black speck on the sky.
Obviously the process wasn't without problems every now and then. More than just a few times I had to kill the motors sending the aircraft plummeting to the ground just to keep it from flying away out of control while I had no idea on how to bring it back to me. But this was exactly why I purchased them, if I were using the H, just one flyaway it's game over.
A few months later I began flying the H without GPS as well, and
in my personal experience all the skill/muscle memory developed from flying those toy-grade hexacopters translated very well into the H,
I would definitely recommend the MJX hexacopters to anyone interested in practicing non-gps flight with an alternative to the much more expensive Typhoon H,
P.S. If you wan't to get a more "accurate" feel from the H with these hexacopters there's a variant of the X600 that has barometric altitude hold, so you will get that spring centered throttle stick just like we do on the H.
(however this variant is a lot slower and much less fun, I would recommend the one without barometer)
Greetings!