Hey Tim, – appreciate your review! I’ve tested this in a lot of trucks and it’s designed with a very precise fit. Some have fit tighter than others, but they all went down all the way when pressed. What I think happens is 2) some of the pockets warp slightly over time in the heat, or 2) there’s a hair of manufacturing variance, or maybe both. This means that the insert just needs pressed down with some force to go all the way in. Please give that a try. Thanks and don’t hesitate to reach out if you need anything!