Some of the valves are too abrupt. It's nearly impossible to raise or lower the boom without jerking the entire machine around disturbingly hard... that valve does not "feather" easily. I added two one way restrictors to the cylinder (two so I can adjust it in both directions) and that made it about 90% better when adjusted so it still moves fast enough. When I curl the bucket with a load it in, the bucket soimetimes slams into the stop and ejects much of the material. I think part of that is due to how the linkage leverage works- the bucket speeds up as it nears the end of its travel. I can get it to work ok some of the time, that valve is not as bad as the boom one. I have another restrictor to add there to see if that will help. Operating three motions at once helps these problems but does not fix them.
Part of this is my lack of experience as a BH operator. But when I got to try out a Kubota mini ex with electric over hydraulic controls I had no problem operating it smoothly and making it do what I wanted (once we flipped the sae/iso switch to make the controls work how I'm used to). It's not really fair to compare a $60k mini ex to a much cheaper BH attachment, but it indicates that the problems I have with my BH isn't just me.
My Branson's loader valve is similar. I find it nearly impossible to raise/lower and curl at the same time. I had no problem doing that with my old Kubota even though it was my first tractor and the joystick linkage was worn out on that used machine. Feathering the loader is difficult but not impossible. (Branson changed how they run the cables on the new models and that may have made an improvement). It's not a huge issue, I can work around it.
I think a lot of this is the quality of the valves themselves. Kubota's known for making especially good ones. Theoretically I could adapt quality aftermarket valves but that's some work and I don't know whose valves are good and whose are not. The valves I have are made by well known companies.
