Not to be argumenitive but with that considered. What makes the Case/Ingersoll Gt's Hydralic Drive so admired and apreciated?
This is just my .02, but I think most of it would have to do with; If you are going to have hydraulic powered implements then with the Case/Ingersoll garden tractors you already have a hydraulic system sufficient enough to support such a thing without having to add another pump to the system. If you wanted to put a angle cylinder on to a push blade it would be as easy as adding a control valve and the cylinder and plumbing it in with the current system.
Where with a gear drive tractor or one with hydrostatic drive you would have to add another pump, unless the hydro is ported(whole other discussion, because the ported pumps wouldn't flow enough for a loader) which would be run off the motor also causing even more parasitic loss. A good example would be my Massey 1655, it has the Sundstrand hydrostatic drive but there is also another pump that is run off of the front pto for the loader.