Having a hydraulic top link does things for you that perhaps you have not thought of. I use mine for mowing quite a bit. When mowing over steep drop offs, without a hydraulic link, you cannot get the rear of mower to drop down. You can lower the 3 pt, but it won't adjust the pitch. I pull the top link in when backing down, once there, I use the valve to drop the mower down. Believe me, its a lot easy to do then explain it. It also allows you to level out the mower when you elevate it. Handy when your not sure what lurks under that tall grass. I will slowly lower the 3 pt as the grass cuts and then check the area for obstacles. If its clear, I'll continue the cut.
The real advantage though comes when you use a boxscraper for adjusting the cutting angle. For me, having a hydraulic top link is an absolute necessity. The tilt cylinder is icing on the cake. Rat