Hey, to the sorters out there. What do you use to keep the shoots/slides slick so the packages just zip down. I don't know how other building are set up but ours is old with metal shoots. Where the loads separate. There is a metal flat piece right before the slides. I sort on a belt with 5 different load. We have wax in a spray bottle that is mixed with water and is crap. I have tried wd40 but its to expensive to use all the time. Anybody out there find something that works good. Half way through the night the boxes get harder to push as the slides get the spray wax off. It causes to get tired quicker/ fall-ins, belt turning off. Anyway thanks!