Got the valve mounted and plumbed. Just fired the tractor up and ran it full throttle for about 5 minutes. Backhoe speed seems unaffected and I used a temp gun on the P and T ports of the valve I just added with no noticeable difference. Seems my doubt on what the valve could flow seems to be put to rest. I did manage to burn the switches up in my John deere joystick control the night before just cycling the valve several time. Turns out the valve I have needs 3.5 amps to operate and the John deere joystick is only good for 0.1 amps. I just ordered the two push button switches to solder into the circuit board for $14 instead of buying the whole $54 wire harness and switches. The general relays I have laying around pull 0.135 amps and higher to activate them so I had to order some micro relays. It's been a learning experience but it's coming along.