I noticed that I am not doing too good in sharper turns as well as in narrow circles at higher speeds: seems like I tend to lean outside the turn which makes me (and probably my horse as well) feel unstable. The odd thing is that trying to oppose that force and slightly switching my weight to inside, I do not feel much better. There's no problem up to medium speed of trot or canter, but if I do any faster, I start to feel unstable in circles of about 15-20 meters diameter. Any advice how to minimize that centrifugal force that is trying to throw you to the outside? As far as I have figured out, it has something to do with seat or weight aids. Is it so, and if yes, how it works?