I've had a few sessions on the IKP baseplates, and I feel like they're very similar if not the same as the standard kingpin with regards to turn and feel. I did crank down the bushings instead of breaking them in slowly so I'm sure I'll regret that sooner than later, but they feel spot-on for me at the moment. After reading through some of this thread, however, I'm considering swapping out the front baseplate for a standard kingpin and saving the other IKP for a future set-up; never crossed my mind when I bought them.