Here's something else you can try... use the joint editor to re-adjust the shoe. Go ahead and conform the shoe, then open the joint editor and move the center down by using the y trans dial. Watch the reaction of the shoe. It should try to fit. It may require a bit more tweaking depending on what all you've done to the figure. When it looks like it fits, re-conform and check. If it looks good do the other one.

I must remember to remember what it was I had to remember.