Hey guys, so I have had my Allen Edmonds Higgins mill boots for some time and have worn them around 5 times. After each time I put my shoe trees into them. However, I noticed that the heel seems to be a tad loose now as in my heel moves side to side somewhat with the shoe on where as in the beginning it was tight. Could it have been the shoe trees? My boots are sz8.5 and I am using size small A&E shoe trees. I push the front part of the tree all the way forward and then compress the spring to fill in the heel and they seem to fit... Any advice is great, I may go back to the A&E store and inquire about this issue because it is quite uncomfortable to have my heel swishing around....