The company I work for is purchasing a P4 mainly to do some mapping & inspection work. We are in the process of putting together operator's manuals, checklists, etc. I would like to pick the brains of those of you already using the P4 platform to find out what kind of regular maintenance you do and at what intervals. Also, if this info is posted elsewhere, I would appeciate it if somebody steered me in the right direction. Thanks.