hopefully the washers that push on the plastic bushing are better now. I had to make new ones, cause the old ones were bending in the center where the bolt pushes on them, I'd have to re-adjust them constantly because they would bend and loosen up, causing deathwobble. I made some new ones from cold rolled and havent had anymore problems.
That was one of the downsides of going with the less-expensive arms, the higher end ones don't have any bolts holding the kingpins, it's built-in to the arm. Hopefully they work out ok and I don't have any issues. I'll remember you said that though, if the front end starts to seem "loose".