I have a Yanmar 3110D with OEM loader. The loader operation speed was hard to control. Almost to the point of being unsafe. If you wanted to lift slow and moved the control handle slow it would suddenly start lifting and if you backed off it would stop suddenly and cause the whole tractor and what ever you were lifting to bounce and jerk. It happens if you are lowering also. I decided to switch out the twin handle for a joy stick (10 gpm). It does the same thing. Was hoping the old one was just worn out. What do I need to do or change to be able to control the loader. BTW, this is not the first loader or tractor I've owned. Its not the person using it. Several have tried. I think this is my first post on here. I wanted to thank every one for the information on here.:thumbsup: