Neither! Rexspeed sells aftermarket cores and it’s not the safest thing to put on your car! Need a nice wheel for similar price with an Oem core? Shoot me a text!
I wouldn't do either on my Supra, but if you are going to remove the airbag, I suggest you do the paddles at the same time. Getting that spring to let go was a biotch for me as I've never touched one before my A90.. and needing to make slits on the sides of the steering wheel itself was a turnoff.
But each time a I get in my car, the 3D Designs paddles are nice. ?