I am wondering what size WB to buy. I have a Exmark Lazer 60" deck and a Great Dane Super surfer 52" deck. I was thinking of a 36" or 44" Toro T-Bar proline. How big of a difference is there between gear and hydro. I have been doing my smaller stuff and some trimming with a push mower 21". It works but dosn't always leave a nice cut and takes a bit longer.