Sorry, don't have one of those NT pullers.
I use a chain and the hooks on the FEL bucket of my Mahindra 5525 for that job. I'm now removing 1/4 mile of old farm fence.
I really don't like that NT puller design that requires attaching to the side of the FEL bucket. That puts unbalanced forces on the FEL arms. I much prefer the centered method shown in the photos.
It's not too smart to risk bending an expensive FEL when trying to remove a really stuck $3 T-post. Those FEL hydraulics are really strong and it's easy to mess up the arms and or the bucket if you're not careful.
If you go with that NT puller, a word of caution. On one of the T-posts, I was about 6" off center with the chain. When I started pulling on that really tight T-post, the left rear wheel of the tractor lifted off the ground. I reversed the joystick mighty fast. Like I said--those FEL hydraulics are strong.
Also, if your FEL has a skid steer attach plate like mine, be aware that you can pull hard enough so the bucket is pulled loose from the two lower lock pins on that attachment. I did that very thing trying to pull one of the wooden corner posts in my fenceline. Fortunately no damage was done to the equipment.