lol catkin, no offense taken, it was more my explanation that was naf

you are right, it is still a steering problem but not a
steering problem

What I was meaning is that she knows the aides and I am not steering with my reins, as in the use of a fulmer would help to turn because its pushing in the outside cheek. I am attempting to keep her as straight as possible through turns as she will overbend and go through her shoulders so this has meant being more proactive with my seat and legs, something which I am lazy at

.
What I was kind of wondering is if the fixed mouth piece of the pelham is less mobile in her mouth, even if my contact is lacking, the bit will not move so much and because it is straight there is no centre piece to become off centre and put her off, therefor she feels everything stiller and stays straighter! Am I talking rubbish?

Anyway, I have found a mullen mouth snaffle to try AND I am going to try my friends myler.