Originally Posted by
jens1956
Attached is a picture of Ideale saddle that I am thinking of buying to complete my Peugeot rebuild. Being new to leather saddles, I am concerned about the shape of the back - obviously reflecting the previous owner's posterior. Is this an indication of sag or other irreparable wear? Many thanks and kind regards
that saddle is pretty much stretched out, producing the tall ridge.
The only way to fix it is to relax the stretch bolt a bit and lace the sides - then work with the stretch bolt to find where it ought to be

a good leather awl works for shaping the holes, but I've found it best to get the holes started with the smallest drill bit you own