Isn't Land Pride part of Kubota now anyway? I can't give info/opinion on the LP kit as I haven't seen one, but the Kubota kit fits perfectly, the control buttons are designed and fit in like they were factory built. The wiring for the stick diverter button is inside the stick so no exposed wiring. The valve itself is well protected with skid plates all around. There is even a wiring breakaway for when you remove the loader. I posted pictures in another thread when I had my dealer add in the kit.
Not sure this is actually true, but I was told the BX series will run short of flow if you try a true third function by using the backhoe circuit to control a grapple.
As Tractor Dell says, once you develop the muscle memory/hand eye coordination or whatever you want to call it, working a grapple with a diverter valve is fast & easy.