New guy getting started with 10 or so 100 x 100 lots and I plan to expand. Scag has a special on the 48" Tiger Cub (6k). I have a 42" JD Sabre tractor and will sell it for the Tiger. I have all of the other accessories but would like to get a commercial quality mower. Walk behind would be cheaper but I only want a rider. Two questions: Am i jumping in over my head with this investment? How much more productivity will the Tiger give over the JD and is it worth the trade up in initial costs? Thanks.