I finished mine connected to the lift circuit in my L3301. To me, everything thing is perfect and intuitive with the Diverter valve. I have the normal functions.
I push the button and the claw opens with a pull back and closes forward with a push forward of the stick.
You should be able to test your swap by only swapping the disconnects for curl and lift for testing. Quick and easy. Then swapping lines to the P1/P2 ports from curl to lift lines. No hardware would be needed.
I know you wanted to use this to angle a blade but I think it would be fast to learn also. I like the fact that pulling back opens my grapple. Kinda like I have a string tied to it is the mental image in my head.
Yeah, I plan to make that swap in Spring. It will require all new hoses for me. There is no "quick and easy" when you have a dedicated commercial design machine with a loader that doesn't pop on and off.
ac