If your Grandpa is like mine he'd probably tell you it was just a tractor. Where did that seat come from?  That is not a stock B seat.

We have 2 operational B's with 59 inch decks and an H with a 6 foot Woods deck. But we do all our mowing with a 7233 Cub Cadet and an LZ 61127 Husqvarna zero turn mower. The Cub Cadet gives mom an advantage on straight flat mowing.  But as soon as she has to turn or go around something the LZ outruns her.

We have a shed with a large lot and 2 driveways in it.  The yard is cut up in 3 sections.  With the B or H it always took at least an hour to mow it.  The first time I did it with the LZ  (I was pushing it) I did it in 20 minutes.