After reading this thread and succumbing to the madness, I think I found a truck setup that alleviates the kingpin clearance and wheelbite issues that plague some of us Thunder users.
My Thunder Team 147 Hi's were starting to get worn down and the kingpin kept sticking, so I hammered it out and replaced with the Krux Downlow Kingpins. The baseplate crevice holds the nut perfectly, so no need for any JB weld or glue. No kingpin wiggle either...
I was previously running the soft white Thunder bushings and liked the looseness, but hated the wheelbite, so I decided to try the Krux Bushings everyone seems to rave about. After putting them in, the trucks felt too tight for my liking. To make them a little looser, I kept the Krux bottom barrel bushing and changed the top to a soft Thunder bushing.
I discovered that this combo seems to help minimize wheelbite, due to shape/hardness of the bottom barrel, yet keeps the trucks relatively loose due to the softer top. Been running this for the past few months with no problems.