They are made by Thorowgood with English leather and as they make an excellent fit cob saddle it should be great. Has changeable gullets too. Very reasonable at around £695 too.
Although sometimes can be hard to get as they are struggling to cope with demand but worth waiting for if you know it will fit.
Just answered question on another board about their high withered GP and all replies were very positive
I have the T6 cob GP version the leather look version), which is lovely. Very well designed and comfortable for the horse. Would definintly have a Kent and Masters version if I had the pennies