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Well I'll be damned. Good for you.

That's a good setup. Most people don't realize that they lose the ability to control their flow if they go with the $1k+ 3rd function kits. I'm really surprised that Summit or WR Long doesn't sell a kit to do exactly what you did here.

You said a mouthful there. I believe I have located what i need. the P40G-1A1 Summit spool valve and a power beyond adapter. About $100 total. I have a friend with a Gates hose machine, so I think i'm in business. Thanks for all your help.

I know that they are common in large row crop tractors.

Very. not sure why it would be more useful than a power beyond circuit, though. Response time improvement maybe? Not to mention the fact that maintaining pressure builds heat and robs power...

It didn't occur to me that the pump line only built pressure when a function was initiated (When a valve is shifted) I get it now. Many thanks.

Thanks. you are by far the most knowledgeable person on tractor hydraulics that i've run across. I'm curious though; wouldn't a closed center valve plumbed into the pump line and back to the tank also work?

I really like this installation. It's exactly what i want to do for my 3rd function. I'm new here, so excuse me if i'm beating a dead horse. a couple questions; Is that valve a regular closed center valve, or is it plumbed into power beyond? Do you happen to have the part #?