Good morning, you're right the circuit board is left in and becomes a parallel circuit once the two wires are tapped into the shuttle valve switch and I think you get what's going on. The proper way to fix it would be to change out the circuit board if it was sold separately but I'm guessing you would probably have to buy the entire hydraulic control block and then bleed it using a special procedure that would require buying a special tool. Doing that mod that way or any other mod is not the proper way of doing things, it's just the cheap quick way of getting back on the road not a long lasting, proper or permanent fix. That's why I made a point of saying and then reiterating In the following that I don't promote any bypass method. That video we looked at and both came to the same conclusion about has had over 100,000 views so there's going to be a lot of people having problems. I made my discovery and documented it in video format two years ago. It sounds like you understand that the procedure I came up with as a fix for certain shuttle valve bypass methods works, you just don't like the whole concept of not fixing things correctly and neither do I. To anybody else reading this if you doubt what you see in the video just read all the comments thanking me for coming up with this method. Also I apologize for the video being so brief; My thought at the time was: it's a simple test and or a simple procedure using a ohmmeter, I should just get to the point! Land Rover should've had a recall for this problem it's ridiculous! Mr. Sierrafery, Thank you for your input and for posting the schematic it is greatly appreciated!