Hope you're coping and I doubt that my BH comment will help much.

I have a 3rd control valve on my loader valve assembly that I use for a rear circuit. I run a BH from that circuit by bungee cording the valve open. The loader valve assembly has a low-pressure return as well as a PB outlet so the hoe connected in this way is not a PB application.
It works OK for fairly light and irregular use. There is some loss and heavy use would tend to over-heat the oil more than a PB hookup would. In addition, continuous flow over many hours would erode the control valve orifices.

The advantage is that I can just disconnect two quick-connects to the top-link or what ever is mounted and connect the hoe. I do have to be careful not to connect it backwards. A PB connection may be better but my connection has worked OK for five years. The approaches are not incompatible. I could have both a control-valve assembly as well as PB connection in the high-pressure line.

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