Jay, I don't own a TC33, so take this with a grain of salt. /w3tcompact/icons/smile.gif
While there are 6 ft mowers that are pretty light, Rhino, Bush Hog and several name brands are about 700 pound for the light duty mowers and 950 pounds for the medium duty mowers. Since that 700 pounds is located way behind the tractor, it can be a problem simply from the weight. General rules are that 6 ft equipment usually is recommended for 40 pto hp tractors. It doesn't take 40 hp to cut grass with one, but in heavy damp grass, and going uphill, the hp load is not insignificant. The other problem is that the 3 point can pick it up, but the tractor steering gets light because the weight on the front decreases. You can easily overcome this by using a front end loader which easily counter balances the rear load or by adding weights on the front.
Get the dealer to loan you the operating manual for your TC33. It should have detailed recommendations for the implements that it is compatable with. /w3tcompact/icons/smile.gif