I've come to the conclusion rear bagging mowers that dump from the seat don't save any time. We bag and remove clippings from every house we cut and the time saved by using these machines are easily lost trying to get the clippings into the truck. Either we dump on the ground or have ramps into the truck, which on wet days the mower can't go up the ramp(to slick). Not to mention the extra maintenance for the bag system. We have a protero vac and are always fixing it.