I noticed today after about 30 miles that my feet were getting very sore from where the cleats mount on the shoe. I have Giro Rumble shoes, Shimano PD-M324 pedals. Hasn't been a problem i have noticed until today I guess. It was warm out, 77 f. Socks are syn/wool. Rumble shoes have probably 2K miles on them. The insert is getting pretty flat. When you pull the insert and feel in the shoe where the cleats are mounted, you can feel the hardware pretty easy from inside.
The obvious correction would be to replace the insert. Which I will do tomm. What say anybody about gluing a thin piece of leather over the inside where the hardware is? All suggestions appreciated. Got a 1000 mile trip planned on June 1 and this doesn't cut it.