I have a wide nozzle Sanitaire-pretty useless machine.the widesweep Royals are MUCH better.the standard nozzle widdth Sanitaires do work much better than the wide ones.The wide ones need a bigger fan and motor.and larger fill tube for the bag to match.I can agree on packing a machine with a plastic fan--don't push your luck-even a wad of paper can melt and erode a plastic fan.If you are using a plastic fan vacuum and hear something rubbing its fan-a high pitched "WEEEEEE-EEE" sound-stop the machine at once and clear out the fancase .