They didn't fit my WOW originally (big mistake) so I've no idea what a trial would cost you but I now pay £50 to have both my WOWs checked (one dressage, one jumping) every 3 months or so.
They also regularly have 2nd hand bits (all as new) from demo saddles etc so you can end up with a complete saddle at a fraction of the new price. For example, I already had jumping flaps for my dressage WOW but I decided to trade up to a full jumping saddle rather than fiddling with changing flaps. They found me panels and a shallow seat for £500 all in, including fitting it to my horse.
They are based in Northumberland but come all the way to Aberdeen to do fittings for us in the frozen North. I'm sure you must be closer to them than me.
I use the same fitter as Marie and have done for a number of years. I know Carolyn travels south and up into Scotland a bit but I don't know if she heads west at all. She's ever so friendly though so I'm sure she wouldn't mind if you rang to ask.
Karen Buncher Saddler
Equinease
Clitheroe
Lancasterhire
Mobile: 07790 596975
Email: karen@equinease.co.uk
Web Site: www.equinease.co.uk
She was about to come out to me and sounded very good but I then had horsey problem so had to cancel.
i am also interested in a wow for my 5yo as she has a sensitive back and doesnt seem comfy in her wintec.its been checked as ok but she doesnt swing through the back very well.
I have used Katie Topping and she is fantastic, great attention to detail and always on hand to help. She fitted my wow to a very round haffie and I've never had a days problem with it and at her regular back checks she never has an issue. It is definately worth giving her a ring if you are still searching. Her mobile is 07977077683. Good luck with getting a wow, you won't regret it