Most recently I experimented with getting the leather molded to my feet. I saturated the insert with conditioner until it was wet. Then put it in the shoe and went for a walk. I could feel it squishing down as I walked. Before too long I suppose I squeezed the conditioner out and the inserts firmed up a bit. When I got back from the walk they were deeply molded to my feet.
It took a couple of days for them to dry out completely. Now I have a truly custom molded insert.
The extra conditioner went into the insole, I suppose, and the water eventually evaporated. It worked so well I made a second pair and now rotate them.
They do not have holes, but if I were concerned about sweating I might punch holes in them so there was air rather than leather agianst part of the soles of my feet.
Nice thing about it, if you don't like the result, just throw them away.
Edited by dbhdnhdbh - 4/19/16 at 2:48am