I am looking to purchase a new mower, and decided to buy a Honda mower from suggestions from other people I know that own them. I am looking at the HRR series, and am trying to decide between the VXA or the TDA mower. The main differences between these mowers is the VXA mower has the Roto-Stop Blade Brake Clutch, and Variable Speed drive. The TDA doesn't have the Roto-Stop Blade Brake Clutch, and is only a 3 speed. My current mower isn't a self propelled mower, so since I have never owned a self propelled mower I don't have any experience with self propelled mowers. The VXA mower is $100 more than the TDA mower, and my question is it worth the extra $100 for these 2 features? With no self propelled experience is variable speed versus 3 speed make that much of a difference. The blade stop I guess could be a nice feature, but how beneficial is this feature? Hopefully I can get some input so I can make my decision.