B-7800 rear remote plumbing

 I've got everything to install my rear remotes. The only thing I have a question on is plumbing.
First, I've got a Kubota B-7800 with FEL.
I've read  many times that the hose from the loader valve PB port to the hydraulic block should be removed. A hose then goes from the PB port on the loader valve to the input on the remote valve. a hose then goes from the PB port on the remote valve back to the hydraulic block where the hose previously removed went. Then, a hose goes from the output port of the rear remote valve back to the tank..
In picking the mechanic's brain at my kubota dealer, he said that is unnecessary. He said he merely removes the hose from the loader valve PB to hydraulic block, and then runs a hose from the PB on the loader valve to inlet of the remote valve, and runs another hose from the outlet of the remote valve back to the hydraulic block (return).. A simple loop. He said that he has been installing rear remotes this way for 27 years.

A hydraulic expert at Cross MFG, the remote valve manufacturer confirmed the mechanics thoughts.
Why are all the remotes at TBN plumbed with the three hoses as in the first method as opposed to the mechanic's second method??

Are there advantages of one method over the other??

What am I missing??

Most hydraulics today use three hoses. This helps stop the relief valve noise, helps keep the heat down in the hydraulic oil, and makes it easier to hook up most hydraulics attachments. Sometimes it also extends the life of your hydraulic pump. The simple loop is still used in many applications for after market installations.

Thank you, Les. 

 Thank you for your reply, Les.

You've answered my question completely.