Uneven shoulders, saddle solutions?

[Countrychic]

I have just got a lovely horse on loan for me to show jump for a year. The woman that had him said the saddle kept slipping, when I got him home the saddle is a good fit but he has the most uneven shoulder development I have ever seen. No wonder the saddle moves!
I have had this problem with another horse but on a much smaller scale and the saddler advised me to pad the saddle. In this instance I think because it is more extreme I need a specific pad so am looking for suggestions please, what about a korrector?
The horse will be getting a lot of help from my physio but she wants it padded out so any advice would be great thanks

 

[Allover]

Some of the prolite wither pads have extra inserts in them so you can pad up one side more than the other if you need to.

 

[BeckyD]

Both my current and previous horse had uneven shoulders, and I use a Prolite slice under the panel on one side. This is what my saddler recommended (and she provided the Prolite slice). I would suggest getting a saddler out who can suggest the best thing for your loan horse.

 

[TarrSteps]

It's probably worth a consultation, as the padding isn't always how you'd think and you don't want to inadvertently "splint" the horse's back in a way that hinders development.

This is becoming my area of specialist study! I can't tell you how many horses I see with "performance" or "behavioural" issues with wildly uneven shoulder development, so much so it interferes with the working of the shoulder on one side and makes the horse unlevel, or even actively resistant to move in particular ways. It does depend on why it's happened but good news is, given the mechanics of the shoulder, it's quite easy to make quick, subtle changes, with then makes it easier for the horse to do the work to make bigger changes.

I have had good luck with mild cases just using a thick, soft edged pad. I'm not a massive fan of Prolites for this because they do have a bit of an "edge" and it often sits right behind the top of the shoulder blade, but I do find it's a bit of a "try and see" situation.