Let me give it in a little better detail. As you know its not the pallet but everything around the pallet that causes wear and tear. (Operators-floor condition-hydraulic cycles specific to the site-freezer app vs. dry grocery--condition of batteries etc.) If you have an in house set up where the same guy is touching the trucks, then based on the sites conditions you may cut the time spent for pm in half for certain parts of the same make or model truck, and you may extended out the pm times for other components on the same makes and model units. If you have heavy hydraulic cycles but the units are not freezer app, you could go thru all the same make units and service just the masts and attachments and leave the steer axles and traction motors until every other pm. Is this making any sense?