Right now the CheckInventory action can only check if an items full nbt data. If you check a stick that has a custom name and custom model data you would have to include both the name and the model data. What I would like to do is to check for the custom model data like this "stick{CustomModelData:1}" and even if the stick is named or had any other data it would still pass the check. This could be toggled using the material_only parameter or with a new one.