Looking to see what types of Sweeper trucks everybody uses. Currently we operate Johnson VT600 and VT650. We are having issues with the main or center broom on the truck coning and wearing out within two weeks and the side or gutter brooms lasting about a Month. Our Inhouse Mechanic tells us both brooms should last at least a month. We are up for replacementr/rebid of equipment and looking for opinions. Thanks in advanced.