Within a month of buying Bella, the Wintec saddle no longer fitted. It was now too narrow so I changed to an extra-wide tree arch which was better, but no matter who rode her, the saddle ALWAYS moved to the right.
I had a saddle fitter out who sold me a Barnsby extra wide, which fitted for a week, then that too started to move to the right. Back out with the saddler who sold me a Jeffries which was OK for 3 weeks, then it too started to move to the right. Bella had also started to trot in a diagonal fashion on three tracks when ridden. She would trot 'shoulder-in' for a few strides then 'shoulder-out' etc and had also started to put little bucks into the equation. Something was not right. The Vet checked her back, teeth, found nothing at all apart from the fact that she is slightly more muscled on the left shoulder than the right.
Time for the Roe Richardson 'Reactorpanel' - they fit anything don't they? - not Bella though! Try as he might by altering blocks etc. he could not stop the saddle moving to the right, even during lunging.
I decided to turn her away for a couple of weeks - then the snow fell.