Join Date: Feb 2012
Location: South Wales, UK
• Horses: 0
Hmm...those riser's aren't that long, are they?
The thing to make sure of is the riser sits behind the horse's shoulder (and inline with, or a touch behind, the edge of the saddle panel) not overlapping as a numnah/saddlecloth would. That should be easier with the dressage saddle as it doesn't look so odd as it does with a GP.
If it's still too short you could make a temporary wither pad with a hand towel folded so it's about 2'long by 8" wide by 1-2" thick. Put between your saddle and cloth, aging so it sits behind the shoulder to fill in the hollow area there. Just watch it doesn't pull down on the withers, but with the saddle you've got that's unlikely.
Might keep you going until the fitter arrives :)