It is so like me. I've been riding western (trail riding) for about 4 years now but never had any proper lessons. So I just kind of learned to stay in the saddle in some way.
Now I made friends with a nice person who has been riding for about a 100 years and she has started giving me lessons. English style. I ride a very nice and calm Haflinger (pony-kind-of-horse). I just had my 4th lesson and I had someone making some video. Seeing it after the lesson made me think that I have a loooooooooooong way to go. I just can't sit up right and my legs keep moving about when I trot. I never had these problems in my western saddle where my position was okay.
I don't know if it is the saddle or if it's me, but I have a feeling that it's me since my trainer has a perfect position in the saddle when she rides the horse (my trainer and I are quite alike physically). Argh...
They say that if you really want to learn how to ride you should start out with English riding, and after that western riding will be quite easy as the cues are similar (a part from the hands if you neck rein and... well also if you don't neck rein but ride western style with a snaffle and loose reins).
Is this correct or am I wasting my time? I really prefer western riding as all this contact with the reins seems unnatural to me and my trainer has to repeat to me 10 times a lesson to keep the contact with the horse's mouth.